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

Monoamine Oxidase

MAO

Monoamine Oxidase

Related Products

PDF 1.35 MB

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-22385B
    (S)-Salsolidine
    		Inhibitor
    (S)-Salsolidine is a weak monoamine oxidase (MAO) inhibitor (Ki=63 μM). The R enantiomer of Salsolidine is more potent than the S form (Ki=26 μM).
    (S)-Salsolidine
  • HY-163322
    MAO-A inhibitor 2
    		Inhibitor
    MAO-A inhibitor 2 (compound HT4) is a monoamine oxidase A (MAO-A) inhibitor with an IC50 of 14.3 µM. MAO-A inhibitor 2 shows a less effect on MAO-B (IC50 of 106 µM) and shows almost ineffective on xanthine oxidase (XO). MAO-A inhibitor 2 can be used for the neurodegenerative disorders and oxidative stress research.
    MAO-A inhibitor 2
  • HY-146314
    MAO-B-IN-9
    		Inhibitor 99.70%
    MAO-B-IN-9 (compound 16) is a potent, selective, BBB-penetrated, irreversible and time-dependent MAO-B (monoamine oxidase B) inhibitor, with an IC50 of 0.18 μM. MAO-B-IN-9 prevents Aβ1-42-induced neuronal cell death. MAO-B-IN-9 shows neuroprotective effects, which may be the result of its Aβ1-42 anti-aggregation effects. MAO-B-IN-9 is a click chemistry reagent, itcontains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    MAO-B-IN-9
  • HY-145577
    Lafadofensine
    		Inhibitor
    Lafadofensine is the monoamines reuptake inhibitor. Lafadofensine has th sufficient effects after short-term administration (extracted from patent WO2006121218A1, compound 1).
    Lafadofensine
  • HY-158092
    ChEs/MAOs-IN-2
    		Inhibitor
    ChEs/MAOs-IN-2 (compound a11) is a cholinesterases and monoamine oxidases inhibitor with IC50 values of 0.10, 0.20, 0.30, 0.40 µM for MAO-A, MAO-B, AChE, and BChE, respectively. ChEs/MAOs-IN-2 has the potential for the research of Alzheimer's disease.
    ChEs/MAOs-IN-2
  • HY-107811A
    Harmol hydrochloride
    		Inhibitor
    Harmol hydrochloride is an orally active β-carboline alkaloid. Harmol hydrochloride is a TFEB activator and monoamine oxidase inhibitor. Harmol hydrochloride can induce cell mitosis, Autophagy and Apoptosis. Harmol hydrochloride promotes the degradation of α-synuclein by regulating the autophagy-lysosomal pathway. Harmol hydrochloride has anti-tumor, anti-depressant and anti-aging activities. Harmol hydrochloride improves motor impairment in a mouse Parkinson's disease model.
    Harmol hydrochloride
  • HY-144758
    LSD1-IN-17
    		Inhibitor
    LSD1-IN-17 (compound 5b) is a potent LSD1 inhibitor. LSD1-IN-17 can inhibit LSD1-CoREST, MAO-A and MAO-B, with IC50 values of 0.005, 0.028, and 0.820 μM, respectively. LSD1-IN-17 displays cell growth arrest in prostate cancer LNCaP cells, with an IC50 of 17.2 μM.
    LSD1-IN-17
  • HY-N4037
    Homopterocarpin
    		Inhibitor
    Homopterocarpin is an isoflavonoid that can be isolated from Pterocarpus erinaceus. Homopterocarpin has hepatoprotective and antioxidant properties. Homopterocarpin is a competitive reversible inhibitor of human monoamine oxidase-B with an IC50 and a Ki of 0.72 and 0.21 μM for hMAO-B, respectively. Homopterocarpin can be used for the research of liver injury and oxidative stress.
    Homopterocarpin
  • HY-101392S1
    Harmane-d2
    		Inhibitor
    Harmane-d2 is the deuterium labeled Harmane. Harmane, a β-Carboline alkaloid (BCA), is a potent neurotoxin that causes severe action tremors and psychiatric manifestations. Harmane shows 1000-fold selectivity for I1-Imidazoline receptor (IC50=30 nM) over α2-adrenoceptor (IC50=18 μM). Harmane is also a potent and selective inhibitor of monoamine oxidase (MAO) (IC50s=0.5 and 5 μM for human MAO A/B, respectively).
    Harmane-d<sub>2</sub>
  • HY-119885A
    (±)-Amiflamine
    		Inhibitor 99.23%
    (±)-Amiflamine (FLA 336) is a potent monoamine oxidase-A (MAO-A) inhibitor with a pIC50 of 5.57.
    (±)-Amiflamine
  • HY-147953
    MAO-B-IN-13
    		Inhibitor
    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.
    MAO-B-IN-13
  • HY-15386
    Cimoxatone
    		Inhibitor
    Cimoxatone (MD 780515) is a reversible, selectively and orally active type A monoamine oxidase (MAO-A) inhibitor. Cimoxatone enhances the anorectic action of Serotonin (HY-B1473A).
    Cimoxatone
  • HY-173334
    hMAO-B-IN-11
    		Inhibitor
    hMAO-B-IN-11 (Compound 12) is a selective and reversible inhibitor of human monoamine oxidase B (hMAO-B) with an IC50 of 0.11 µM. hMAO-B-IN-11 acts through competitive binding to the hMAO-B active site, preventing oxidative deamination of monoamines and reducing hydrogen peroxide production. hMAO-B-IN-11 also inhibits pro-inflammatory mediators (NO, TNF-α, IL-1β) in activated microglia, hMAO-B-IN-11 is promising for research of neurodegenerative diseases like Parkinson’s and Alzheimer’s.
    hMAO-B-IN-11
  • HY-B1543
    Benmoxin
    		Inhibitor
    Benmoxin is a monoamine oxidase (MAO) inhibitor. Benmoxin is used in depression research.
    Benmoxin
  • HY-162729
    LSD1-IN-34
    		Inhibitor
    LSD1-IN-34 (Compound 7d) is the orally active inhibitor for Lysine-specific demethylase (LSD) and monoamine oxidase (MAO), with IC50 of 4.51 and 18.46 nM, for LSD1 and MAO A. LSD1-IN-34 inhibits the Ang II-induced neonatal rat myocardial fibroblasts (NRCFs) activation, without significant toxicity (20 μM). LSD1-IN-34 inhibits TGFβ/Smad signaling pathway, and ameliorates heart failure in mice. LSD1-IN-34 exhibits good pharmacokinetic characteristics in rats.
    LSD1-IN-34
  • HY-145695
    Dual AChE-MAO B-IN-1
    		Inhibitor
    Dual AChE-MAO B-IN-1 (compound 15) is an orally bioavailable CNS-permeant potent inhibitor of both human AChE (IC50=550 nM) and MAO B (IC50=8.2 nM). Dual AChE-MAO B-IN-1 behaves as a safe and metabolically stable neuroprotective agent, devoid of cytochrome liability.
    Dual AChE-MAO B-IN-1
  • HY-W777360
    Harman-13C2,15N
    		Inhibitor
    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).
    Harman-<sup>13</sup>C<sub>2</sub>,<sup>15</sup>N
  • HY-116097
    PSB-1491
    		Inhibitor
    PSB-1491 is a selective and competitive monoamine oxidase B (MAO-B) inhibitor with an IC50 of 0.386 nM for hMAO-B. PSB-1491 shows >25000-fold selective versus MAO-A.
    PSB-1491
  • HY-150563
    Neuroinflammatory-IN-2
    		Inhibitor
    Neuroinflammatory-IN-2 is a potent anti-neuroinflammatory agent with an IC50 value of 10.30 μM for MAO-B, and 96.33% inhibition of Aβ1-42 aggregation at 25 μM. Neuroinflammatory-IN-2 has neuroprotective activity in H2O2-induced PC-12 cell injury. Neuroinflammatory-IN-2 also has biometal chelating abilities, antioxidant activity, anti-neuroinflammatory activity and appropriate BBB permeability. Neuroinflammatory-IN-2 can be used for researching Alzheimer’s disease.
    Neuroinflammatory-IN-2
  • HY-152113
    AChE/BChE/MAO-B-IN-3
    		Inhibitor
    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.
    AChE/BChE/MAO-B-IN-3
Cat. No. Product Name / Synonyms Application Reactivity
Monoamine Oxidase Isoform Comparison

Your Search Returned No Results.

Sorry. There is currently no product that acts on isoform together.

Please try each isoform separately.