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Results for "

MAO activity

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Monoamine Oxidase (104) 5-HT Receptor (2) Adrenergic Receptor (3) Akt (1) Amylases (1) Amyloid-β (5) Androgen Receptor (1) Antibiotic (7) Apoptosis (17) Autophagy (3) Bacterial (8) Bcl-2 Family (3) Caspase (1) Cholinesterase (ChE) (18) COX (1) Cytochrome P450 (4) DNA/RNA Synthesis (3) Dopamine Receptor (2) Dopamine β-hydroxylase (3) Drug Metabolite (1) DYRK (1) Endogenous Metabolite (5) Estrogen Receptor/ERR (1) Ferroptosis (2) Fluorescent Dye (1) GABA Receptor (4) Glutathione Peroxidase (1) Glycosidase (3) Guanylate Cyclase (1) HDAC (1) HIF/HIF Prolyl-Hydroxylase (1) Histamine Receptor (1) Histone Demethylase (7) HSP (1) Imidazoline Receptor (3) Influenza Virus (2) Isotope-Labeled Compounds (7) JAK (1) Keap1-Nrf2 (1) Lipoxygenase (1) mGluR (2) Microtubule/Tubulin (1) nAChR (3) NF-κB (8) NO Synthase (1) Opioid Receptor (3) P-glycoprotein (1) Parasite (4) PARP (2) PGC-1α (4) PI3K (1) PKC (2) Reactive Oxygen Species (ROS) (4) Reference Standards (15) Reverse Transcriptase (2) Sigma Receptor (1) Survivin (2) Tau Protein (1) Telomerase (2) TNF Receptor (3) α-synuclein (1)
By Research Areas:	Cancer (31) Cardiovascular Disease (9) Endocrinology (4) Infection (14) Inflammation/Immunology (22) Metabolic Disease (10) Neurological Disease (95)
Click Chemistry:	Alkynes (10)

127

Inhibitors & Agonists

Natural
Products

Isotope-Labeled Compounds

Click Chemistry

Targets Recommended: Monoamine Oxidase

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-N0453

Hypericin 5+ Cited Publications	Apoptosis Influenza Virus Antibiotic Monoamine Oxidase PKC Cytochrome P450 Dopamine β-hydroxylase Reverse Transcriptase Telomerase	Infection Neurological Disease Cancer
Hypericin is a naturally occurring substance found in Hyperlcurn perforatum L. Hypericin is an inhibitor of PKC (protein kinase C), *MAO* (monoaminoxidase), dopamine-beta-hydroxylase, reverse transcriptase, telomerase and CYP (cytochrome P450). Hypericin shows antitumor, antiviral, antidepressive activities, and can induce apoptosis .

HY-161240

MAO-B-IN-30	Monoamine Oxidase	Neurological Disease Inflammation/Immunology
MAO-B-IN-30 (compound IS7) is a potent, selective and cross the blood-brain barrier *MAO-B* inhibitor with IC₅₀ values of 19.176, 0.082 µM for MAO-A and MAO-B, respectively. MAO-B-IN-30 shows antiproliferative activity and non-cytotoxic. MAO-B-IN-30 reduces TNF-alpha, IL-6, NF-kB levels. MAO-B-IN-30 has the potential for the research of Parkinson's disease .

HY-14855B

Tedizolid phosphate 2 Publications Verification TR-701FA	Bacterial Antibiotic Monoamine Oxidase	Infection
Tedizolid phosphate (TR-701FA) is a *MAO-A* and *MAO-B* inhibitor with activity against Gram-positive bacteria .

HY-163474

MAO-B-IN-32	Monoamine Oxidase	Neurological Disease
MAO-B-IN-32 is an inhibitor of *MAO-B* (IC₅₀ = 16 nM).MAO-B-IN-32 increases dopamine concentration in the brain by inhibiting MAO-B activity .

HY-157517

MAO-B-IN-29	Monoamine Oxidase	Neurological Disease
MAO-B-IN-29 (compound 9a) is a inhibitor against *MAO-B* activity .

HY-157087

AChE/MAO-B-IN-4	Cholinesterase (ChE) Monoamine Oxidase	Neurological Disease
AChE/MAO-B-IN-4 (compound 4a) is a selective dual AChE and *MAO-B* inhibitor. AChE/MAO-B-IN-4 shows no significant inhibition activity against BChE and h-MAO-A. AChE/MAO-B-IN-4 can be used for the Alzheimer’s disease (AD) research .

HY-158732

MAO-B-IN-33	Monoamine Oxidase	Inflammation/Immunology
MAO-B-IN-33 (compound C3) is a potent, reversible and selective monoamine oxidase-B (MAO-B) inhibitor with an IC₅₀ of 0.021 μM and 26.805 μM for MAO-B and MAO-A, respectively. The selectivity of MAO-B-IN-33 is attributed to the steric clash arising from the residue differences between Phe208 (MAO-A) and Ile199 (MAO-B). MAO-B-IN-33 inhibits cerebral MAO-B activity and alleviates MPTP (HY-15608)-induced dopaminergic neuronal loss in the mouse. MAO-B-IN-33 has the potential for Parkinson's disease research .

HY-146149

MAO-B-IN-11	Monoamine Oxidase	Neurological Disease
MAO-B-IN-11 (Compound 8c) is a potent monoamine oxidase B (MAO-B) inhibitor with an IC₅₀ of 1.3 μM. MAO-B-IN-11 shows a neuroprotective activity .

HY-146150

MAO-B-IN-12	Monoamine Oxidase	Neurological Disease
MAO-B-IN-12 (Compound 16c) is a potent monoamine oxidase B (MAO-B) inhibitor with an IC₅₀ of 1.3 μM. MAO-B-IN-12 shows a neuroprotective activity .

HY-105041

Tedizolid phosphate sodium TR-701FA sodium	Antibiotic Bacterial Monoamine Oxidase	Infection
Tedizolid phosphate (TR-701FA) sodium is a *MAO-A* and *MAO-B* inhibitor with activity against Gram-positive bacteria .

HY-149984

MAO-B-IN-21	Monoamine Oxidase	Neurological Disease Inflammation/Immunology
MAO-B-IN-21 is an excellent *MAO-B* inhibitor with antioxidant activity and anti-Aβ aggregation activity. MAO-B-IN-21 also exhibits metal-ion chelating ability, anti-neuroinflammation (NO, TNF-α), neuroprotective activity and BBB permeability. MAO-B-IN-21 significantly improves the memory and cognitive impairment in Aβ1-42 induced Alzheimer's disease mice model .

HY-143330

MAO-B-IN-4	Monoamine Oxidase	Neurological Disease
MAO-B-IN-4 (Compound 26) is an orally active and reversible *MAO-B* inhibitor with an IC₅₀ of 9 nM. MAO-B-IN-4 has good metabolic stability, safety profile and brain permeability. MAO-B-IN-4 shows antidepressant activity in rats and mice. MAO-B-IN-4 can be used in studies related to Alzheimer's disease .

HY-170887

MAO-B-IN-39	Keap1-Nrf2 Monoamine Oxidase	Inflammation/Immunology
MAO-B-IN-39 (compound11) is a selective monoamine oxidase B (MAO-B) inhibitor. MAO-B-IN-39 inhibits *MAO-B*with an IC₅₀ of 3.61 μM. MAO-B-IN-39 demonstrates a potent NRF2 induction capacity. MAO-B-IN-39 exhibits potent anti-inflammatory and neuroprotective activity in OS (oxidative stress)-related in vitro models. MAO-B-IN-39 demonstrates high liver microsomal stability and favorable pharmacokinetics in mice. MAO-B-IN-39 is potential for Parkinson’s disease (PD) research .

HY-152110

AChE/MAO-IN-2	Cholinesterase (ChE) Monoamine Oxidase	Neurological Disease
Dual AChE-MAO B-IN-5, indanone derivative, is a potent dual *AChE/MAO-B* inhibitior with IC₅₀ values of 0.0224, 0.0412, and 0.1116 μM for AChE, MAO-B and MAO-A, respectively. Dual AChE-MAO B-IN-5 has antioxidant activity and prevents β-amyloid plaque aggregation. Dual AChE-MAO B-IN-5 can be used for Alzheimer’s disease (AD) research .

HY-147953

MAO-B-IN-13	Monoamine Oxidase	Neurological Disease
MAO-B-IN-13 (compound 12a) is a highly potent, reversible and blood-brain barrier (BBB) penetrant *MAO-B* inhibitor with an IC₅₀ value of 10 nM. MAO-B-IN-13 has neuroprotective and antioxidant activity. MAO-B-IN-13 can be used for researching Parkinson’s disease .

HY-101169

Tetrindole mesylate	Monoamine Oxidase	Neurological Disease
Tetrindole mesylate is a selective inhibitor of *monoamine oxidase A (MAO* A)*. Tetrindole mesylate inhibits rat brain mitochondrial MAO* A in a competitive manner with a K_i value of 0.4 μM and inhibits MAO B with a K_i of 110 μM. Tetrindole mesylate has antidepressant activity .

HY-W067583

Norharmine	Monoamine Oxidase DYRK	Others
Norharmine is a Harmine analogue and an alkaloid. Norharmine is the inhibitors of *MAO-A* and DYRK1A. Norharmine has weak inhibitory activity against *MAO-A* and certain inhibitory activity against DYRK1A .

HY-149528

MAO-B-IN-24	Monoamine Oxidase Cholinesterase (ChE)	Cancer
MAO-B-IN-24 (compound 11h) is a selective, reversible, competitive inhibitor of MAO-B (IC₅₀: 1.60 μM). MAO-B-IN-24 also inhibited MAO-A (22.42 μM); at 10 μM concentration, it also reduced AChE and BChE activities to 54.58% and 88.43% .

HY-162606

MAO-A/B-IN-3	Monoamine Oxidase Cholinesterase (ChE)	Neurological Disease
MAO-A/B-IN-3 (Compound 12) stands out as a key dual *MAO-AChE* inhibitor, displaying excellent multi-target efficacy against *MAO-A, MAO-B, and AChE* with IC₅₀ values of 67 nM, 29 nM, and 1370 nM respectively. MAO-A/B-IN-3 is adept at altering the A site (hydrophobic ring) and C site (semicarbazone chain) within ketone amine-based MTDLs to bolster the inhibitory potential against *MAO-A/B* while notably diminishing activity against AChE. MAO-A/B-IN-3 is poised for research applications in the field of neurodegenerative diseases .

HY-131624

LON 954	Monoamine Oxidase	Neurological Disease
LON 954, a tremorogenic agent, is a reversible monoamine oxidase (MAO) inhibitor. LON 954 inhibits MAO activity in various tissue preparations .

HY-176271

MAO-B-IN-45	Ferroptosis Monoamine Oxidase Glutathione Peroxidase Reactive Oxygen Species (ROS) Tau Protein Amyloid-β	Neurological Disease
MAO-B-IN-45 is a dual inhibitor of ferroptosis and *MAO-B. MAO-B-IN-45 shows selectivity towards MAO-B* with an IC₅₀ of 87.47 nM and selectivity exceeding 229-fold for *MAO-B* over MAO-A. MAO-B-IN-45 has excellent antiferroptosis activity through modulation of the iron metabolic pathway and GSH-GPX4 axis in vitro. MAO-B-IN-45 improves cognitive and behavioral impairments in 3×Tg (APP/Tau/Ps1) AD mouse and significantly reduced the levels of ferritin heavy chain 1 (FTH1), APP, and Tau phosphorylation (p-Tau) proteins in the brain.

HY-149820

MAO-B-IN-22	Monoamine Oxidase	Neurological Disease
MAO-B-IN-22 (compound 6h) is a potent *MAO-B* inhibitor with an IC₅₀ of 0.014 μM. MAO-B-IN-22 has high antioxidant activity, good metal chelating ability, proper BBB permeability and significant neuroprotective effect .

HY-139647

(+)-Cinchonaminone	Monoamine Oxidase	Others
(+)-Cinchonaminone shows monoamine oxidase (MAO) inhibitory activity.

HY-163618

DHMQ	Fluorescent Dye Monoamine Oxidase	Cancer
DHMQ is a NIR fluorescent probe that binds to the propylamino group of monoamine oxidase A (MAO-A). DHMQ tracks MAO-A activity in real-time by using fluorescence imaging on mice and cells .

HY-116765

MAO-B-IN-35	Endogenous Metabolite	Neurological Disease
MAO-B-IN-35 is a potent, selective, reversible monoamine oxidase B (MAO-B) inhibitor with high inhibitory activity. MAO-B-IN-35 can exhibit high selectivity and potency at a small molecule scale. MAO-B-IN-35 is designed and synthesized so that it can be efficiently obtained during standard synthesis procedures and has superior physical and chemical properties .

HY-172461

MAO-IN-6	Monoamine Oxidase Cholinesterase (ChE)	Neurological Disease
MAO-IN-6 (Compound 3f) is a BBB permeable and reversible *MAO-B* inhibitor with an IC₅₀ of 0.09 μM. MAO-IN-6 also exhibits certain inhibitory activities against AChE and BChE, with IC₅₀ values of 4.48 μM and 17.03 μM, respectively. MAO-IN-6 has low cytotoxicity and can be used in the research of Alzheimer's disease .

HY-161328

MAO-B-IN-31	α-synuclein	Neurological Disease
MAO-B-IN-31 (Compound 30) is an effective and selective inhibitor of monoamine oxidase B (monoamine oxidase B). The IC₅₀ value is 41 nM. MAO-B-IN-31 also inhibits α-syn and tau aggregation. MAO-B-IN-31 has neuroprotective activity .

HY-16731

Sembragiline EVT 302; RG1577; RO4602522	Monoamine Oxidase Reactive Oxygen Species (ROS)	Neurological Disease
Sembragiline (EVT 302) is a potent, selective and reversible monoamine oxidase B (MAO-B) inhibitor. Sembragiline reduces the metabolism of dopamine and other amine neurotransmitters by inhibiting the activity of the *MAO-B* enzyme, thereby potentially increasing the concentration of these neurotransmitters in the brain. Inhibition of the MAO-B enzyme also reduces the formation of toxic reactive oxygen species (ROS) that play a role in the pathological process of AD. Sembragiline has good oral activity and blood-brain barrier permeability. Sembragiline can be used in studies of AD, especially in patients with AD who show increased *MAO-B* activity .

HY-14260

RS 8359	Monoamine Oxidase	Neurological Disease
RS 8359 is a selective and reversible *MAO-A* inhibitor, with antidepressant activity.

HY-131036

MAO-IN-M30 dihydrochloride	Monoamine Oxidase	Neurological Disease
MAO-IN-M30 dihydrochloride is an orally active, brain-permeable, and brain selective irreversible *MAO-A* (IC₅₀=37 nM) and *MAO-B* (IC₅₀=57 nM) inhibitor. MAO-IN-M30 dihydrochloride is a potent iron chelator and radical scavenger. MAO-IN-M30 dihydrochloride has a neuroprotective effect against Dexamethasone-induced brain cell apoptosis. MAO-IN-M30 dihydrochloride also exhibits neurorestorative activity in post MPTP and lactacystin models of Parkinson's disease . MAO-IN-M30 (dihydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-175523

MAO-B-IN-48	Monoamine Oxidase Cholinesterase (ChE) Amyloid-β	Neurological Disease
MAO-B-IN-48 is a selective *MAO-B* inhibitor (IC₅₀ = 0.09 μM, K_i = 0.02 μM). MAO-B-IN-48 exhibits inhibitory activity against hBChE (IC₅₀ = 1.10 μM, K_i = 0.43 μM) and AChE (IC₅₀ = 0.56 μM, K_i = 0.14 μM). MAO-B-IN-48 suppresses self-induced aggregation of toxic β-amyloid peptides and exerts antioxidant activity, including DPPH radical scavenging, CUPRAC copper ion reduction, and superoxide anion scavenging. MAO-B-IN-48 can be used for the study of Alzheimer's disease (AD) .

HY-N12134

Methyl piperate	Monoamine Oxidase	Neurological Disease
Methylpiperic acid is a piperine alkaloid with significant MAO inhibitory activity (IC₅₀3.6 μM). Methylpiperic acid is less effective against MAO-B (IC₅₀1.6 μM) than MAO-A (IC₅₀27.1 μM) has a bidirectional inhibitory effect. Methylphenidate is used to treat mental disorders .

HY-152113

AChE/BChE/MAO-B-IN-3	Monoamine Oxidase Cholinesterase (ChE)	Neurological Disease
AChE/BChE/MAO-B-IN-3, an indan-1-one derivative, is a potent *MAO-B* inhibitor with an IC₅₀ of 0.0359 μM for human MAO-B. AChE/BChE/MAO-B-IN-3 is a potent AChE and BChE enzyme inhibitor, with IC₅₀s of 0.0473 μM and 0.0782 μM for human AChE and BChE enzyme, respectively. AChE/BChE/MAO-B-IN-3 shows significant antioxidant activity and has the potential for Alzheimer's disease (AD) research .

HY-152114

AChE/BChE/MAO-B-IN-4	Monoamine Oxidase Cholinesterase (ChE)	Neurological Disease
AChE/BChE/MAO-B-IN-4, an indan-1-one derivative, is a potent *MAO-B* inhibitor with an IC₅₀ of 0.0393 μM for human MAO-B. AChE/BChE/MAO-B-IN-4 is a potent AChE and BChE enzyme inhibitor, with IC₅₀s of 0.0458 μM and 0.075 μM for human AChE and BChE enzyme, respectively. AChE/BChE/MAO-B-IN-4 shows significant antioxidant activity and prevent β-amyloid plaque aggregation. AChE/BChE/MAO-B-IN-4 has the potential for Alzheimer's disease (AD) research .

HY-152112

AChE/BChE/MAO-B-IN-2	Monoamine Oxidase Cholinesterase (ChE)	Neurological Disease
AChE/BChE/MAO-B-IN-2 is a potent AChE, BChE, and *MAO-B* enzymes inhibitor with IC₅₀ values of 48.2 nM, 83.9 nM, and 31.2 nM, respectively. AChE/BChE/MAO-B-IN-2 has significant antioxidant activity, and can be used for Parkinson’s disease research .

HY-162830

5-LOX/MAOs-IN-1	Lipoxygenase Monoamine Oxidase	Neurological Disease
5-LOX/MAOs-IN-1 (compound 3) is a 5-LOX/MAOs inhibitor and a potent free radical scavenger with antioxidant properties. 5-LOX/MAOs-IN-1 also showed neuroprotective activity in oxidative stress-damaged cell models and can activate the neurogenesis microenvironment of adult mouse neural stem cells. 5-LOX/MAOs-IN-1 can be used for the study of neurodegenerative diseases .

HY-A0091

Pargyline hydrochloride 3 Publications Verification	Monoamine Oxidase	Cardiovascular Disease Cancer
Pargyline hydrochloride is an irreversible monoamine oxidase (MAO) inhibitor with K_is of 13 μM and 0.5 μM for *MAO-A* and *MAO-B, respectively. Pargyline hydrochloride has antihypertensive and anticancer activities* . Pargyline (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-A0091A

Pargyline 3 Publications Verification	Monoamine Oxidase	Cardiovascular Disease Cancer
Pargyline is an irreversible monoamine oxidase (MAO) inhibitor with K_is of 13 μM and 0.5 μM for *MAO-A* and *MAO-B, respectively. Pargyline has antihypertensive and anticancer activities* . Pargyline is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-14855BR

Tedizolid phosphate (Standard) TR-701FA (Standard)	Reference Standards Bacterial Antibiotic Monoamine Oxidase	Infection
Tedizolid (phosphate) (Standard) is the analytical standard of Tedizolid (phosphate). This product is intended for research and analytical applications. Tedizolid phosphate (TR-701FA) is a MAO-A and MAO-B inhibitor with activity against Gram-positive bacteria[1].

HY-14200A

(S)-Rasagiline mesylate TVP1022 mesylate; S-PAI mesylate	Monoamine Oxidase	Neurological Disease
(S)-Rasagiline (TVP1022) mesylate is the relatively inactive S-enantiomer form of Rasagiline mesylate. Rasagiline mesylate is a highly potent selective irreversible *MAO* inhibitor with IC₅₀s of 4.43 nM and 412 nM for rat brain MAO B and A activity, respectively .

HY-175524

BChE/MAO-B-IN-2	Monoamine Oxidase Cholinesterase (ChE)	Neurological Disease
BChE/MAO-B-IN-2 is a dual inhibitor of BChE (IC₅₀ = 0.05 μM, K_i = 0.01 μM) and *MAO-B* (IC₅₀ = 0.45 μM, K_i = 0.08 μM) with good blood-brain barrier permeability. BChE/MAO-B-IN-2 exhibits antioxidant activity, including DPPH radical scavenging, CUPRAC copper ion reduction, and superoxide anion scavenging. BChE/MAO-B-IN-2 can be used for the study of Alzheimer's disease (AD) .

HY-119774

Caroxazone	Monoamine Oxidase	Neurological Disease
Caroxazone is a reversible inhibitor for monoamine oxidase (MAO). Caroxazone exhibits activity as an antidepressant agent .

HY-100588

VU0364770	mGluR	Neurological Disease
VU0364770 is a selective and potent positive allosteric modulator (PAM) of mGlu4. VU0346770 exhibits EC₅₀s of 290 nM and 1.1 μM at rat mGlu4 and human mGlu4 receptor, respectively. VU0364770 exhibits antagonist activity at mGlu5 with a potency of 17.9 μM and PAM activity at mGlu6 with a potency of 6.8 μM. VU0364770 also possesses activity at MAO with K_i values of 8.5 and 0.72 μM for human MAO-A and human MAO-B, respectively .

HY-100588A

VU0364770 hydrochloride	mGluR	Neurological Disease
VU0364770 hydrochloride is a selective and potent positive allosteric modulator (PAM) of mGlu4. VU0346770 hydrochloride exhibits EC₅₀s of 290 nM and 1.1 μM at rat mGlu4 and human mGlu4 receptor, respectively. VU0364770 hydrochloride exhibits antagonist activity at mGlu5 with a potency of 17.9 μM and PAM activity at mGlu6 with a potency of 6.8 μM. VU0364770 hydrochloride also possesses activity at MAO with K_i values of 8.5 and 0.72 μM for human MAO-A and human MAO-B, respectively .

HY-163625

Mtb-IN-7	Monoamine Oxidase Bacterial	Infection
Mtb-IN-7 (compoun R7) is a *MAO-A/MAO-B* inhibitor with the IC₅₀ values over 40 μM. Mtb-IN-7 shows antimycobacterial activity against M. tuberculosis H37Rv with the MIC of 2.01 μM .

HY-164649

Atibeprone Lu 53439	Monoamine Oxidase	Neurological Disease
Atibeprone (Lu 53439) is a selective *MAO-B* inhibitor. Atibeprone has antidepressant activity .

HY-100679B

(R)-Pirlindole mesylate	Monoamine Oxidase	Neurological Disease
(R)-Pirlindole mesylate is selective and reversible a Monoamine oxidase A (MAO-A) inhibitor with an IC₅₀ of 0.43  μM for MAO-A over MAO-B. (R)-Pirlindole mesylate has an antidepressant activity. (R)-Pirlindole mesylate significantly decreases immobility time of the forced swim test and inhibits Reserpine (HY-N0480)-induced palpebral ptosis in behavioural mice models. (R)-Pirlindole mesylate can be used for depression research .

HY-N1638

1-Methyl-2-undecyl-4(1H)-quinolone	Monoamine Oxidase	Neurological Disease
1-Methyl-2-undecyl-4(1H)-quinolone is a potent, irreversible and selective inhibitor of type B monoamine oxidase (MAO-B). 1-Methyl-2-undecyl-4(1H)-quinolone shows a selective inhibition of *MAO-B* activity with the IC₅₀ and K_i values of 15.3 μM and 9.91 μM, respectively, but did not inhibit type A MAO (MAO-A) activity. Methyl-2-undecyl-4(1H)-quinolone, as a quinolone alkaloid, is isolated from fresh leaves and fruits of Evodia rutaecarpa HOOK. f. et THOMS .

HY-135611R

Imidocarb (Standard)	Reference Standards Parasite Antibiotic	Infection
Pargyline (hydrochloride) (Standard) is the analytical standard of Pargyline (hydrochloride). This product is intended for research and analytical applications. Pargyline hydrochloride is an irreversible monoamine oxidase (MAO) inhibitor with Kis of 13 μM and 0.5 μM for MAO-A and MAO-B, respectively. Pargyline hydrochloride has antihypertensive and anticancer activities . Pargyline (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-A0091AR

Pargyline (Standard)	Reference Standards Monoamine Oxidase	Cardiovascular Disease Cancer
Pargyline (Standard) is the analytical standard of Pargyline. This product is intended for research and analytical applications. Pargyline is an irreversible monoamine oxidase (MAO) inhibitor with K_is of 13 μM and 0.5 μM for *MAO-A* and *MAO-B, respectively. Pargyline has antihypertensive and anticancer activities* . Pargyline is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-N0453

Hypericin Maximum Cited Publications 6 Publications Verification	Structural Classification Natural Products Classification of Application Fields Guttiferae Source classification Phenols Polyphenols Hyperlcurn perforatum L. Plants Disease Research Fields Cancer	Apoptosis Influenza Virus Antibiotic Monoamine Oxidase PKC Cytochrome P450 Dopamine β-hydroxylase Reverse Transcriptase Telomerase
Hypericin is a naturally occurring substance found in Hyperlcurn perforatum L. Hypericin is an inhibitor of PKC (protein kinase C), *MAO* (monoaminoxidase), dopamine-beta-hydroxylase, reverse transcriptase, telomerase and CYP (cytochrome P450). Hypericin shows antitumor, antiviral, antidepressive activities, and can induce apoptosis .

HY-N9329

Glicoricone	Flavonoids Classification of Application Fields Leguminosae Source classification Phenols Polyphenols Metabolic Disease Plants Disease Research Fields Glycyrrhiza uralensis Fisch. Isoflavones	Monoamine Oxidase Estrogen Receptor/ERR
Glicoricone, a phenolic compound, is isolated from a species of licorice. Glicoricone is an inhibitor of monoamine oxidase (MAO), with an IC₅₀ of 140 μM. Glicoricone binds to estrogen receptor (ER) and shows estrogen antagonist activity .

HY-N0464

D-(-)-Quinic acid 2 Publications Verification	Infection Structural Classification Microorganisms other families Classification of Application Fields Ketones, Aldehydes, Acids Source classification Plants Endogenous metabolite Disease Research Fields	Endogenous Metabolite Glycosidase Monoamine Oxidase
D-(-)-Quinic acid scavenges hydrogen peroxide (IC₅₀=87.11 μg/mL) and exhibits antioxidant activity. D-(-)-Quinic acid is the inhibitor for *MAO* and α-Glucosidase (IC₅₀ =93.75 μg/mL). D-(-)-Quinic acid is orally active .

HY-Y0265

Isatin Indoline-2,3-dione	Cardiovascular Disease Alkaloids Structural Classification other families Neurological Disease Classification of Application Fields Source classification Plants Disease Research Fields Indole Alkaloids	Monoamine Oxidase Apoptosis
Isatin (Indoline-2,3-dione) is a potent inhibitor of monoamine oxidase (MAO) with an IC₅₀ of 3 μM. Also binds to central benzodiazepine receptors (IC₅₀ against clonazepam, 123 μM) . Also acts as an antagonist of both atrial natriuretic peptide stimulated and nitric oxide-stimulated guanylate cyclase activity . Shows effect on the serotonergic system .

HY-N0453R

Hypericin (Standard) Maximum Cited Publications 6 Publications Verification	Structural Classification Natural Products Classification of Application Fields Guttiferae Source classification Phenols Hyperlcurn perforatum L. Plants Disease Research Fields Cancer	Reference Standards Apoptosis Influenza Virus Antibiotic Monoamine Oxidase PKC Cytochrome P450 Dopamine β-hydroxylase Reverse Transcriptase Telomerase
Hypericin (Standard) is the analytical standard of Hypericin. This product is intended for research and analytical applications. Hypericin is a naturally occurring substance found in Hyperlcurn perforatum L. Hypericin is an inhibitor of PKC (protein kinase C), *MAO* (monoaminoxidase), dopamine-beta-hydroxylase, reverse transcriptase, telomerase and CYP (cytochrome P450). Hypericin shows antitumor, antiviral, antidepressive activities, and can induce apoptosis .

HY-N12134

Methyl piperate	Piper longum Linn. Structural Classification Natural Products Source classification Piperaceae Plants	Monoamine Oxidase
Methylpiperic acid is a piperine alkaloid with significant MAO inhibitory activity (IC₅₀3.6 μM). Methylpiperic acid is less effective against MAO-B (IC₅₀1.6 μM) than MAO-A (IC₅₀27.1 μM) has a bidirectional inhibitory effect. Methylphenidate is used to treat mental disorders .

HY-N1638

1-Methyl-2-undecyl-4(1H)-quinolone	Alkaloids Structural Classification Evodia rutaecarpa (Juss.) Benth. Source classification Rutaceae Quinoline Alkaloids Plants	Monoamine Oxidase
1-Methyl-2-undecyl-4(1H)-quinolone is a potent, irreversible and selective inhibitor of type B monoamine oxidase (MAO-B). 1-Methyl-2-undecyl-4(1H)-quinolone shows a selective inhibition of *MAO-B* activity with the IC₅₀ and K_i values of 15.3 μM and 9.91 μM, respectively, but did not inhibit type A MAO (MAO-A) activity. Methyl-2-undecyl-4(1H)-quinolone, as a quinolone alkaloid, is isolated from fresh leaves and fruits of Evodia rutaecarpa HOOK. f. et THOMS .

HY-N0464R

D-(-)-Quinic acid (Standard)	Structural Classification Microorganisms other families Ketones, Aldehydes, Acids Source classification Plants Endogenous metabolite	Reference Standards Endogenous Metabolite Glycosidase Monoamine Oxidase
D-(-)-Quinic acid (Standard) is the analytical standard of D-(-)-Quinic acid. This product is intended for research and analytical applications. D-(-)-Quinic acid scavenges hydrogen peroxide (IC₅₀=87.11 μg/mL) and exhibits antioxidant activity. D-(-)-Quinic acid is the inhibitor for *MAO* and α-Glucosidase (IC₅₀ =93.75 μg/mL). D-(-)-Quinic acid is orally active .

HY-N1636

1-Methyl-2-nonyl-4(1H)-quinolone	Alkaloids Neurological Disease Classification of Application Fields Source classification Rutaceae Quinoline Alkaloids Plants Disease Research Fields	Monoamine Oxidase
1-Methyl-2-nonyl-4(1H)-quinolone, a quinolone alkaloid, is a potent and selective *MAO-B* (monoamine oxidase) inhibitor. 1-Methyl-2-nonyl-4(1H)-quinolone exhibites inhibitory activity on leukotriene biosynthesis, with an IC₅₀ of 12.1 μM .

HY-N15657

Geiparvarin	Structural Classification Terpenoids Source classification Rutaceae Diterpenoids Geijera parviflora Lindl. Plants	Apoptosis COX Caspase Microtubule/Tubulin Monoamine Oxidase
Geiparvarin is an anticancer agent and an inhibitor of *MAO-B* (pIC₅₀ = 6.84 μM). Geiparvarin exerts anti-tumor effects by downregulating COX2 expression and inhibiting angiogenesis. Geiparvarin blocks the cell cycle at the G₁ phase and induces apoptosis of cancer cells. Geiparvarin has anti-microtubule activity and destroys the cytoskeleton to exert anti-proliferative effects. Geiparvarin has research significance for lung cancer, leukemia, and breast cancer .

HY-Y0265R

Isatin (Standard) Indoline-2,3-dione (Standard)	Alkaloids Structural Classification other families Source classification Plants Indole Alkaloids	Reference Standards Monoamine Oxidase Apoptosis
Isatin (Standard) is the analytical standard of Isatin. This product is intended for research and analytical applications. Isatin (Indoline-2,3-dione) is a potent inhibitor of monoamine oxidase (MAO) with an IC50 of 3 μM. Also binds to central benzodiazepine receptors (IC50 against clonazepam, 123 μM) . Also acts as an antagonist of both atrial natriuretic peptide stimulated and nitric oxide-stimulated guanylate cyclase activity . Shows effect on the serotonergic system .

HY-N7204

4-Hydroxyderricin 1 Publications Verification	Structural Classification Chalcones Monophenols Flavonoids Phenols Umbelliferae Plants Ondetia linearis Benth.	Monoamine Oxidase Dopamine β-hydroxylase Apoptosis
4-Hydroxyderricin, the major active ingredients of Angelica keiskei Koidzumi, is an orally active, potent selective MAO-B (Monoamine oxidase inhibitors) inhibitor with an IC₅₀ of 3.43 μM. 4-Hydroxyderricin also mildly inhibits dopamine β (DBH)-hydroxylase activity. 4-Hydroxyderricin has antidepressant activity, anti-allergic, anti-diabetic, anti-oxidant, and antitumor effects. 4-Hydroxyderricin promotes apoptosis and cell cycle arrest through regulating PI3K/AKT/mTOR pathway in hepatocellular cells. 4-Hydroxyderricin inhibits osteoclast formation and accelerates osteoblast differentiation . 4-Hydroxyderricin is promising for research of inflammatory diseases .

HY-N2554

Osthenol Ostenol	Structural Classification Source classification Coumarins Phenols Polyphenols Phenylpropanoids Kleinia odora (Forssk.) DC. Umbelliferae Plants	Monoamine Oxidase PI3K Akt Apoptosis
Osthenol (Ostenol) is a reversible, selective, competitive inhibitor of hMAO-A (IC₅₀=0.74 μM, K_i=0.26 μM), with antifungal and antibacterial activity. Osthenol inhibits the oxidative deamination of hMAO-A and regulates the metabolism of monoamine neurotransmitters. Osthenol also inhibits the PI3K/AKT signaling pathway to induce apoptosis of colon cancer cells, arrest the cell cycle at the G1 phase, and inhibit cell proliferation. Osthenol is mainly used in the study of neurological diseases and cancer, especially depression-related MAO-A targeted intervention and colon cancer .

HY-101392

Harmane 1 Publications Verification	Alkaloids Structural Classification other families Source classification Pyridine Alkaloids Plants Indole Alkaloids	Imidazoline Receptor Monoamine Oxidase Adrenergic Receptor nAChR GABA Receptor Opioid Receptor
Harmane is a benzodiazepine receptor inhibitor (IC₅₀=7 μM), with IC₅₀ values for mACh, Opioid Receptor, *MAO-A/B, and α2-adrenergic receptor* of 24 μM, 2.8 μM, 0.5 μM, 5 μM, and 18 μM, respectively. Harmane inhibits the I1 imidazoline receptor (IC₅₀ = 30 nM) to reduce blood pressure and has antidepressant, anti-anxiety, anticonvulsant, and analgesic effects. Harmane inhibits dopamine biosynthesis by decreasing tyrosine hydroxylase (TH) activity and enhancing L-DOPA-induced cytotoxicity in PC12 cells. Additionally, Harmane can increase the mutagenic effect induced by 2-acetylaminofluorene (AAF) .

HY-101392A

Harmane hydrochloride	Apocynaceae Structural Classification Alkaloids Other Alkaloids Source classification Plants Rauwolfia canescens	Imidazoline Receptor Monoamine Oxidase Adrenergic Receptor nAChR GABA Receptor Opioid Receptor
Harmane hydrochloride is a benzodiazepine receptor inhibitor (IC₅₀=7 μM), with IC₅₀ values for mACh, Opioid Receptor, *MAO-A/B, and α2-adrenergic receptor* of 24 μM, 2.8 μM, 0.5 μM, 5 μM, and 18 μM, respectively. Harmane hydrochloride inhibits the I1 imidazoline receptor (IC₅₀ = 30 nM) to reduce blood pressure and has antidepressant, anti-anxiety, anticonvulsant, and analgesic effects. Harmane hydrochloride inhibits dopamine biosynthesis by decreasing tyrosine hydroxylase (TH) activity and enhancing L-DOPA-induced cytotoxicity in PC12 cells. Additionally, Harmane hydrochloride can increase the mutagenic effect induced by 2-acetylaminofluorene (AAF) .

Cat. No.	Product Name	Chemical Structure

HY-14605S

Rasagiline-13C3 mesylate
Rasagiline- ¹³C₃ ((R)-AGN1135- ¹³C₃; TVP1012- ¹³C₃) mesylate is the deuterium labeled Rasagiline (mesylate) (HY-14605) . Rasagiline (R-AGN1135) mesylate is a highly potent selective irreversible mitochondrial monoamine oxidase (MAO) inhibitor with IC₅₀s of 4.43 nM and 412 nM for rat brain MAO B and A activity, respectively .

HY-B0678S

Metaxalone-d3

Metaxalone-d₃ is the deuterium labeled Metaxalone. Metaxalone (AHR438; NSC170959) is an FDA-approved muscle relaxant. Metaxalone acts mainly on the central nervous system and achieves muscle relaxation by inhibiting polysynaptic reflex arcs. In addition, Metaxalone is an inhibitor of MAO-A, which has anti-inflammatory and antioxidant effects. Metaxalone inhibits IL-1β-induced inflammatory phenotype, modulates NF-κB and other related signaling pathways, and decreases MAO-A expression and activity in IL-1β-treated microglia .

HY-W015490S

1,4-Naphthoquinone-d6

1,4-Naphthoquinone-d₆ is the deuterium labeled 1,4-Naphthoquinone. 1,4-Naphthoquinone is an inhibitor with broad-spectrum inhibitory activity targeting DNA polymerase, NF-κB and monoamine oxidase (MAO-A/B), with antibacterial and anti-biofilm efficacy. 1,4-Naphthoquinone is a competitive inhibitor of MAO-B (Ki=1.4 μM) and a non-competitive inhibitor of MAO-A (Ki=7.7 μM). 1,4-Naphthoquinone inhibits DNA polymerase pol α, β, γ, δ, ε, λ with IC₅₀ ranging from 5.57-128 μM. 1,4-Naphthoquinone inhibits tumor cell proliferation, induces apoptosis and necrosis, and has anti-angiogenic and anti-inflammatory activities by inducing oxidative stress, depleting glutathione (GSH), inhibiting DNA polymerase-mediated DNA synthesis and blocking NF-κB nuclear translocation. 1,4-Naphthoquinone can be used in anti-bacterial , anti-tumor and anti-inflammatory studies, including inhibition of melanoma and colon cancer cell growth and endothelial cell function, as well as LPS-induced inflammation models .

HY-B0678S1

Metaxalone-d6

Metaxalone-d₆ is deuterium labeled Metaxalone. Metaxalone (AHR438; NSC170959) is an FDA-approved muscle relaxant. Metaxalone acts mainly on the central nervous system and achieves muscle relaxation by inhibiting polysynaptic reflex arcs. In addition, Metaxalone is an inhibitor of MAO-A, which has anti-inflammatory and antioxidant effects. Metaxalone inhibits IL-1β-induced inflammatory phenotype, modulates NF-κB and other related signaling pathways, and decreases MAO-A expression and activity in IL-1β-treated microglia .

HY-N0464S

Quinic acid-13C3
Quinic acid- ¹³C₃ is the ¹³C-labeled D-(-)-Quinic acid. D-(-)-Quinic acid scavenges hydrogen peroxide (IC₅₀=87.11 μg/mL) and exhibits antioxidant activity. D-(-)-Quinic acid is the inhibitor for *MAO* and α-Glucosidase (IC₅₀ =93.75 μg/mL). D-(-)-Quinic acid is orally active .

HY-W700834

Harman-d3

Harman-d₃ is deuterium labeled Harmane. Harmane is a benzodiazepine receptor inhibitor (IC₅₀=7 μM), with IC₅₀ values for mACh, Opioid Receptor, MAO-A/B, and α2-adrenergic receptor of 24 μM, 2.8 μM, 0.5 μM, 5 μM, and 18 μM, respectively. Harmane also inhibits haloperidol and serotonin, with IC₅₀ values of 163 μM and 101 μM, respectively. Harmane inhibits the I1 imidazoline receptor (IC₅₀=30 nM) to reduce blood pressure and has antidepressant, anti-anxiety, anticonvulsant, and analgesic effects. Harmane inhibits dopamine biosynthesis by decreasing tyrosine hydroxylase (TH) activity and enhancing L-DOPA-induced cytotoxicity in PC12 cells. Additionally, Harmane can increase the mutagenic effect induced by 2-acetylaminofluorene (AAF) .

HY-W777360

Harman-13C2,15N

Harman- ¹³C₂, ¹⁵N is ¹³C and ¹⁵N labeled Harmane. Harmane is a benzodiazepine receptor inhibitor (IC₅₀=7 μM), with IC₅₀ values for mACh, Opioid Receptor, MAO-A/B, and α2-adrenergic receptor of 24 μM, 2.8 μM, 0.5 μM, 5 μM, and 18 μM, respectively. Harmane also inhibits haloperidol and serotonin, with IC₅₀ values of 163 μM and 101 μM, respectively. Harmane inhibits the I1 imidazoline receptor (IC₅₀=30 nM) to reduce blood pressure and has antidepressant, anti-anxiety, anticonvulsant, and analgesic effects. Harmane inhibits dopamine biosynthesis by decreasing tyrosine hydroxylase (TH) activity and enhancing L-DOPA-induced cytotoxicity in PC12 cells. Additionally, Harmane can increase the mutagenic effect induced by 2-acetylaminofluorene (AAF) .

Cat. No.	Product Name		Classification

HY-131036

MAO-IN-M30 dihydrochloride		Alkynes
MAO-IN-M30 dihydrochloride is an orally active, brain-permeable, and brain selective irreversible *MAO-A* (IC₅₀=37 nM) and *MAO-B* (IC₅₀=57 nM) inhibitor. MAO-IN-M30 dihydrochloride is a potent iron chelator and radical scavenger. MAO-IN-M30 dihydrochloride has a neuroprotective effect against Dexamethasone-induced brain cell apoptosis. MAO-IN-M30 dihydrochloride also exhibits neurorestorative activity in post MPTP and lactacystin models of Parkinson's disease . MAO-IN-M30 (dihydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-A0091

Pargyline hydrochloride 3 Publications Verification		Alkynes
Pargyline hydrochloride is an irreversible monoamine oxidase (MAO) inhibitor with K_is of 13 μM and 0.5 μM for *MAO-A* and *MAO-B, respectively. Pargyline hydrochloride has antihypertensive and anticancer activities* . Pargyline (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-A0091A

Pargyline 3 Publications Verification		Alkynes
Pargyline is an irreversible monoamine oxidase (MAO) inhibitor with K_is of 13 μM and 0.5 μM for *MAO-A* and *MAO-B, respectively. Pargyline has antihypertensive and anticancer activities* . Pargyline is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-14605

Rasagiline mesylate Maximum Cited Publications 7 Publications Verification (R)-AGN1135 mesylate; TVP1012 mesylate		Alkynes
Rasagiline (R-AGN1135) mesylate is a highly potent selective irreversible mitochondrial monoamine oxidase (MAO) inhibitor with IC₅₀s of 4.43 nM and 412 nM for rat brain MAO B and A activity, respectively . Rasagiline (mesylate) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-14605A

Rasagiline Maximum Cited Publications 7 Publications Verification (R)-AGN1135; TVP1012		Alkynes
Rasagiline (R-AGN1135) is a highly potent selective irreversible mitochondrial monoamine oxidase (MAO) inhibitor with IC₅₀s of 4.43 nM and 412 nM for rat brain MAO B and A activity, respectively . Rasagiline is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-14200

(S)-Rasagiline 1 Publications Verification TVP1022; S-PAI		Alkynes
(S)-Rasagiline (TVP1022) is the relatively inactive S-enantiomer form of Rasagiline. Rasagiline is a highly potent selective irreversible *MAO* inhibitor with IC₅₀s of 4.43 nM and 412 nM for rat brain MAO B and A activity, respectively . (S)-Rasagiline is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-10399A

Ladostigil hydrochloride TV-3326 hydrochloride		Alkynes
Ladostigil (TV-3326) hydrochloride is an orally active dual inhibitor of cholinesterase and brain-selective monoamine oxidase (MAO), with IC₅₀s of 37.1 and 31.8 μM for *MAO-B* and AChE, respectively. Ladostigil hydrochloride exhibits neuroprotective, antioxidant and anti-inflammatory activities. Ladostigil can be used for the research of depression and Alzheimer's disease . Ladostigil (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-10400

Ladostigil hemitartrate TV-3326 hemitartrate		Alkynes
Ladostigil (TV-3326) hemitartrate is an orally active dual inhibitor of cholinesterase and brain-selective monoamine oxidase (MAO), with IC₅₀s of 37.1 and 31.8 μM for *MAO-B* and AChE, respectively. Ladostigil hemitartrate exhibits neuroprotective, antioxidant and anti-inflammatory activities. Ladostigil hemitartrate can be used for the research of depression and Alzheimer's disease . Ladostigil (hemitartrate) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

HY-175524

BChE/MAO-B-IN-2		Alkynes
BChE/MAO-B-IN-2 is a dual inhibitor of BChE (IC₅₀ = 0.05 μM, K_i = 0.01 μM) and *MAO-B* (IC₅₀ = 0.45 μM, K_i = 0.08 μM) with good blood-brain barrier permeability. BChE/MAO-B-IN-2 exhibits antioxidant activity, including DPPH radical scavenging, CUPRAC copper ion reduction, and superoxide anion scavenging. BChE/MAO-B-IN-2 can be used for the study of Alzheimer's disease (AD) .

HY-10399

Ladostigil TV-3326		Alkynes
Ladostigil (TV-3326) is an orally active dual inhibitor of cholinesterase and brain-selective monoamine oxidase (MAO), with IC₅₀s of 37.1 and 31.8 μM for *MAO-B* and AChE, respectively. Ladostigil exhibits neuroprotective, antioxidant and anti-inflammatory activities. Ladostigil can be used for the research of depression and Alzheimer's disease . Ladostigil is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

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