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

Monoamine Oxidase

MAO

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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-100975
    TB5
    Inhibitor 99.96%
    TB5 is a potent, selective and reversible inhibitor of hMAO-B with a Ki value of 0.11±0.01 μM.
    TB5
  • HY-151466
    HIF-1α-IN-5
    Inhibitor 99.95%
    HIF-1α-IN-5 is a HIF-1α inhibitor with an IC50 value of 24 nM (in HEK293T cell). HIF-1α-IN-5 also inhibits MAO-A activity. HIF-1α-IN-5 downregulates VEGF and PDK1 mRNA expressions under hypoxia. HIF-1α-IN-5 can be used in the research of cancer.
    HIF-1α-IN-5
  • HY-122812
    Maesopsin
    Inhibitor 99.66%
    Maesopsin is a phenolic compound, that can be isolated from Hoveniae Lignum.
    Maesopsin
  • HY-N0159R
    Paeonol (Standard)
    Inhibitor
    Paeonol (Standard) is the analytical standard of Paeonol. This product is intended for research and analytical applications. Paeonol is an active extraction from the root of Paeonia suffruticosa, Paeonol inhibits MAO-A and MAO-B with IC50 of 54.6 μM and 42.5 μM, respectively.
    Paeonol (Standard)
  • HY-E70519
    Tyramine oxidase, Microorganism
    Tyramine oxidase, Microorganism (EC 1.4.3.4) is a copper enzyme found in the cytoplasm of animal cells that catalyzes the oxidation of phenolic amine substrates. Tyramine oxidase, Microorganism involves in the metabolism and clearance of phenolamine compounds and has an important role in maintaining homeostasis in vivo. Tyramine oxidase, Microorganism is promising for research of hypertension, asthma, and depression.
    Tyramine oxidase, Microorganism
  • HY-N0453R
    Hypericin (Standard)
    Inhibitor
    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.
    Hypericin (Standard)
  • HY-151498A
    PXS-4787 hydrochloride
    Inhibitor 99.71%
    PXS-4787 hydrochloride is a specific and effective pan-LOX (lysyl oxidase) inhibitor for abolishing lysyl oxidase activity. PXS-4787 hydrochloride inhibits LOX with IC50s of 2 μM (Bovine LOX), 3.2 μM (rh LOXL1), 0.6 μM (rh LOXL2), 1.4 μM (rh LOXL3), 0.2 μM (rh LOXL4), respectively. PXS-4787 hydrochloride reduces deposition and crosslinking of collagen I secreted by human fibroblasts.
    PXS-4787 hydrochloride
  • HY-W010130
    7-Hydroxy-3,4-dihydro-2(1H)-quinolinone
    Inhibitor 99.96%
    7-Hydroxy- 3, 4- dihydro- 2(1H) - quinolinone (3,4-Dihydro-7-hydroxy-2(1H)-quinolinone) is a weak MAO-A inhibitor, with an IC50 of 183 μM, and has no effect on MAO-B.
    7-Hydroxy-3,4-dihydro-2(1H)-quinolinone
  • HY-N9329
    Glicoricone
    Inhibitor
    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.
    Glicoricone
  • HY-114520
    TT01001
    Inhibitor 99.38%
    TT01001 is a selective and orally active mitoNEET agonist and a monoamine oxidase B (MAO-B) inhibitor (IC50 = 8.84 μM). TT01001 does not activate PPARγ but interacts with MitoNEET. TT01001 attenuates oxidative stress and neuronal apoptosis by preventing mitoNEET-mediated mitochondrial dysfunction. TT01001 improves type II diabetes and ameliorates mitochondrial function of mice. TT01001 can used for the studies of type II diabetes and neurological disorders .
    TT01001
  • HY-101169
    Tetrindole mesylate
    Inhibitor 99.93%
    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 Ki value of 0.4 μM and inhibits MAO B with a Ki of 110 μM. Tetrindole mesylate has antidepressant activity.
    Tetrindole mesylate
  • HY-W087433
    Ethyl 7-(diethylamino)-2-oxo-2H-chromene-3-carboxylate
    Inhibitor 99.78%
    Ethyl 7-(diethylamino)-2-oxo-2H-chromene-3-carboxylate is a potent and selective inhibitor of hMAO-B with an IC50 of 45.52 μM.
    Ethyl 7-(diethylamino)-2-oxo-2H-chromene-3-carboxylate
  • HY-W655727
    (-)-2-Phenylpropylamine
    Inhibitor
    (-)-2-Phenylpropylamine ((S)-2-Phenylpropylamine) (compound 3b) is a MAO-A and MAO-B inhibitor with Ki values of 584 μM and 156 μM, respectively.
    (-)-2-Phenylpropylamine
  • HY-101392S
    Harmane-d
    Inhibitor 98.01%
    Harmane-d 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
  • HY-N2336
    Rosmarinic acid racemate
    Inhibitor 98.01%
    Rosmarinic acid racemate is the racemate of Rosmarinic acid. Rosmarinic acid inhibits MAO-A, MAO-B and COMT enzymes with IC50s of 50.1, 184.6 and 26.7 μM, respectively.
    Rosmarinic acid racemate
  • HY-151596
    MAO-A/5-HT2AR-IN-1
    Inhibitor 99.71%
    MAO-A/5-HT2AR-IN-1 (compound I14) is a potent MAO-A and 5-HT2AR dual inhibitor, with IC50 values of 0.004 and 0.014 μM, respectively. MAO-A/5-HT2AR-IN-1 is a potential antidepressant agent.
    MAO-A/5-HT2AR-IN-1
  • HY-118178
    LY43578
    Inhibitor 99.76%
    LY43578 is an orally active aromatase inhibitor. LY43578 inhibits P-450-dependent p-nitroanisole O-demethylation and ethylmorphine N-demethylation in hepatic microsomes isolated from rat, with the IC50 of 0.3 and 5 μΜ, respectively. LY43578 can be used for neurological disorder study.
    LY43578
  • HY-106770
    Esuprone
    Inhibitor
    Esuprone is a brain-penetrant, orally active and selective MAO A inhibitor with an IC50 of 7.3 nM. Esuprone can be used for neurological research.
    Esuprone
  • HY-B0884
    Minaprine
    Inhibitor
    Minaprine is a reversible inhibitor of MAO-A; weakly inhibit acetylcholinesterase; an antidepressant for treatment of depression.
    Minaprine
  • HY-100027A
    Ro 41-1049 hydrochloride
    Inhibitor 99.96%
    Ro 41-1049 hydrochloride is a reversible and selective inhibitor of monoamine oxidase-A (MAO-A). An homogeneous population of high affinity binding sites for [3H]Ro 41-1049 is found in membrane preparations from human frontal cortex and placenta (Kd values of 16.5 and 64.4 nM, respectively).
    Ro 41-1049 hydrochloride
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