2. Signaling Pathways
  3. Neuronal Signaling
  4. Monoamine Oxidase

Monoamine Oxidase

MAO

Monoamine Oxidase

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Monoamine oxidases (MAO) are a family of enzymes that catalyze the oxidation of monoamines. They are found bound to the outer membrane of mitochondria in most cell types in the body. They belong to the protein family of flavin-containing amine oxidoreductases. Monoamine oxidases catalyze the oxidative deamination of monoamines. Oxygen is used to remove an amine group from a molecule, resulting in the corresponding aldehyde and ammonia. Monoamine oxidases contain the covalently bound cofactor FAD and are, thus, classified as flavoproteins. Because of the vital role that MAOs play in the inactivation of neurotransmitters, MAO dysfunction is thought to be responsible for a number of psychiatric and neurological disorders. MAO-A inhibitors act as antidepressant and antianxiety agents, whereas MAO-B inhibitors are used alone or in combination to treat Alzheimer’sand Parkinson’s diseases.

Monoamine Oxidase Isoform Specific Products:

Monoamine Oxidase Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-144673
    LSD1-IN-12
    		Inhibitor
    LSD1-IN-12 (compound 2) is a potent LSD1 inhibitor, with Ki values of 1.1 μM (LSD1), 61 μM (LSD2), 2.3 μM (MAO-A), and 3.5 μM (MAO-B), respectively.
    LSD1-IN-12
  • HY-146312
    AChE/BChE/MAO-B-IN-1
    		Inhibitor 99.57%
    AChE/BChE/MAO-B-IN-1 is a reversible and non-time-dependent AChE, BChE and MAO-B inhibitor with IC50 values of 7.31, 0.56 and 26.1 μM for hAChE, hBChE and hMAO-B, respectively. AChE/BChE/MAO-B-IN-1 can cross the BBB and shows neuroprotective effects without cytotoxicity.
    AChE/BChE/MAO-B-IN-1
  • HY-155330
    PZ-1922
    		Inhibitor
    PZ-1922 (Compound 16) is a BBB-penetrable 5-HT6R/5-HT3R antagonist (Ki: 17 nM, 0.45 nM for 5-HT6R/5-HT3R respectively). PZ-1922 reversibly inhibits MAO-B (pIC50: 8.93). PZ-1922 reverses Scopolamine (SCOP) (HY-N0296) induced memory deficits in the novel object recognition (NOR) test in rats. PZ-1922 prevents Aβ-induced memory decline in the T-maze test.
    PZ-1922
  • HY-162606
    MAO-A/B-IN-3
    		Inhibitor
    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.
    MAO-A/B-IN-3
  • HY-131624
    LON 954
    		Inhibitor
    LON 954, a tremorogenic agent, is a reversible monoamine oxidase (MAO) inhibitor. LON 954 inhibits MAO activity in various tissue preparations.
    LON 954
  • HY-W335927
    MAO-B-IN-19
    		Inhibitor
    MAO-B-IN-19 is a selective MAO-B inhibitor with an IC50 of 0.67 μM. MAO-B-IN-19 shows neuroprotective and anti-inflammatory properties.
    MAO-B-IN-19
  • HY-148159
    Safrazine
    		Inhibitor
    Safrazine is an irreversible, non-specific and orally active monoamine oxidase (MAO) inhibitor. Safrazine can be used for the research of depression.
    Safrazine
  • HY-160002
    MAO-B-IN-27
    		Inhibitor
    MAO-B-IN-27 (Compound 12c) is a monoamine oxidase B (MAO-B) inhibitor. MAO-B-IN-27 has potent and selective MAO-B inhibitory effect for hMAO-B with an IC50 values of 8.9 nM. MAO-B-IN-27 can be used for the research of parkinson's disease (PD).
    MAO-B-IN-27
  • HY-174834
    MAO-B-IN-44
    		Inhibitor
    MAO-B-IN-44 (Compound 4n) is a selective monoamine oxidase B (MAO-B) inhibitor targetin with an IC50 value of 1.01 μM, showing weak inhibition on MAO-A (IC50=14.4 μM). MAO-B-IN-44 reduces degradation of neurotransmitters like dopamine. MAO-B-IN-44 is promising for research of neurodegenerative diseases related to MAO-B abnormalities such as Parkinson’s disease.
    MAO-B-IN-44
  • HY-157517
    MAO-B-IN-29
    		Inhibitor
    MAO-B-IN-29 (compound 9a) is a inhibitor against MAO-B activity.
    MAO-B-IN-29
  • HY-Y1750A
    β-Aminopropionitrile hydrochloride
    		Inhibitor
    β-Aminopropionitrile (BAPN) hydrochloride is a specific, irreversible and orally active lysyl oxidase (LOX) inhibitor. β-Aminopropionitrile hydrochloride targets the active site of LOX or LOXL isoenzymes.
    β-Aminopropionitrile hydrochloride
  • HY-W083062
    hMAO-B-IN-5
    		Inhibitor 99.66%
    hMAO-B-IN-5 (Compound B15) is a potent, selective and reversible human monoamine oxidase-B (hMAO-B) inhibitor with an IC50 of 120 nM and a Ki of 33 nM. hMAO-B-IN-5 can be used in the research of neurodegenerative diseases.
    hMAO-B-IN-5
  • HY-151209
    MAO-B-IN-15
    		Inhibitor
    MAO-B-IN-15 is a selective MAO-B inhibitor (IC50: 13.5 μM) that forms π-π interaction with Tyr 326 residue. MAO-B-IN-15 can be used in the research of Parkinson’s disease.
    MAO-B-IN-15
  • HY-108048A
    Desoxypeganine hydrochloride
    		Inhibitor
    Desoxypeganine (Deoxypeganine) hydrochloride, an alkaloid, is a potent and orally active cholinesterase (BChE and AChE) and selective MAO-A inhibitor, with IC50 values of 2, 17, and 2 μM, respectively. Desoxypeganine hydrochloride can be used for alcohol abuse research.
    Desoxypeganine hydrochloride
  • HY-N0464S
    Quinic acid-13C3
    		Inhibitor
    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.
    Quinic acid-<sup>13</sup>C<sub>3</sub>
  • HY-143721
    SSAO inhibitor-2
    		Inhibitor
    SSAO inhibitor-2 (Compound 1) is a semicarbazide-sensitive amine oxidase (SSAO) inhibitor with IC50s of <10 nM, and 10-100 μM for human SSAO and MAO-A, respectively. SSAO inhibitor-3 can be used for the research of atherosclerosis, diabetes and its complications, obesity, stroke, chronic kidney disease, retinopathy, chronic obstructive pulmonary disease (COPD), autoimmune diseases, multiple sclerosis, etc.
    SSAO inhibitor-2
  • HY-17447AS
    (1S,2R)-Tranylcypromine-d5 hydrochloride
    (1S,2R)-Tranylcypromine-d5 (hydrochloride) is the deuterium labeled Tranylcypromine hydrochloride. Tranylcypromine hydrochloride (SKF 385 hydrochloride) is an irreversible inhibitor of lysine-specific demethylase 1 (LSD1/BHC110) and monoamine oxidase (MAO). Tranylcypromine hydrochloride inhibits LSD1, MAO A and MAO B with IC50s of 20.7, 2.3 and 0.95 μM, respectively. Tranylcypromine hydrochloride can be used for the research of depression.
    (1S,2R)-Tranylcypromine-d<sub>5</sub> hydrochloride
  • HY-157087
    AChE/MAO-B-IN-4
    		Inhibitor
    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.
    AChE/MAO-B-IN-4
  • HY-N0505R
    Rosiridin (Standard)
    		Inhibitor
    Rosiridin (Standard) is the analytical standard of Rosiridin. This product is intended for research and analytical applications. Rosiridin inhibits MAO A and MAO B with potential beneficial effect in depression and senile dementia. Rosiridin shows an inhibition of 83.8% against MAO B at 10 μM (pIC50=5.38).
    Rosiridin (Standard)
  • HY-156079
    Antidepressant agent 5
    Antidepressant agent 5 (Compound 3i) is a 7-substituted tetrahydroisoquinolines derivatives. Antidepressant agent 5 exhibits almost equal antidepressant activity compared with magnoflorine. ntidepressant agent 5 can be used for depressive disorder research.
    Antidepressant agent 5
Cat. No. Product Name / Synonyms Application Reactivity
Monoamine Oxidase Isoform Comparison

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