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-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-W275048
    MAO-A inhibitor 3
    Inhibitor 99.85%
    MAO-A inhibitor 3 (Compound 360) is a MAO-A inhibitor, with IC50 of >100 μΜ. MAO-A inhibitor 3 can be used to study neurological disorders.
    MAO-A inhibitor 3
  • 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 99.55%
    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
  • HY-10399
    Ladostigil
    Inhibitor
    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.
    Ladostigil
  • HY-B1018AS
    Phenelzine-d5 sulfate
    Inhibitor 99.97%
    Phenelzine-d5 sulfate is the deuterium labeled Phenelzine sulfate (HY-B1018A). Phenelzine sulfate, an antidepressant agent, is an irreversible and orally active monoamine oxidase (MAO-A and MAO-B) inhibitor. Phenelzine sulfate inhibits GABA transaminase and primary amine oxidase (PrAO), and sequester reactive aldehydes. Phenelzine sulfate also inhibits LSD1 (Ki: 5.6 μM) and suppresses oxidative stress and lipogenesis. Phenelzine sulfate elevates neurotransmitters (serotonin, norepinephrine, dopamine). Phenelzine sulfate is studied in neurological, metabolic and cancer diseases for depression and anxiety disorders, stroke, spinal cord injury, traumatic brain injury, multiple sclerosis, Parkinson’s disease, Alzheimer’s disease, inflammatory pain, obesity and prostate cancer.
    Phenelzine-d<sub>5</sub> sulfate
  • HY-146958
    MAO-B-IN-8
    Inhibitor 98.03%
    MAO-B-IN-8 is a potent reversible MAO-B inhibitor and an inhibitor of microglial production of neuroinflammatory mediator. MAO-B-IN-8 can be used for neurodegenerative disease research.
    MAO-B-IN-8
  • HY-132907
    MAO-B-IN-2
    Inhibitor 99.05%
    MAO-B-IN-2 is a selective and competitive inhibitor of MAO-B and BChE with IC50 values of 0.51 and 7.00 μM, respectively.
    MAO-B-IN-2
  • HY-151499
    PXS-6302
    Inhibitor
    PXS-6302 is an irreversible lysyl oxidase inhibitor with IC50s of 3.7 μM (Bovine LOX), 3.4 μM (rh LOXL1), 0.4 μM (rh LOXL2), 1.5 μM (rh LOXL3), 0.3 μM (rh LOXL4), respectively. PXS-6302 has readily skin penetrability, reduces collagen deposition and significantly improves scar appearance.
    PXS-6302
  • HY-125515
    Tetrahydroharmine
    Inhibitor 98.00%
    Tetrahydroharmine (Leptaflorine) is A monoamine oxidase (MAO) inhibitor with a IC50 value of 74 nM for MAO-A. Tetrahydroharmine can be used in the study of neurodegenerative diseases.
    Tetrahydroharmine
  • HY-13779A
    J147
    Inhibitor 99.90%
    J147 is an exceptionally potent, orally active, neuroprotective agent for cognitive enhancement. J147 can pass the blood brain barrier (BBB). J147 can inhibit monoamine oxidase B (MAO B) and the dopamine transporter. J147 plays an impotant role in Alzheimer’s disease (AD).
    J147
  • HY-120826
    A2AAR/hMAO-B-IN-1
    Inhibitor ≥99.0%
    A2AAR/hMAO-B-IN-1 (compoudn 17) is a non-xanthine dual-target inhibitor targeting the A2A adenosine receptor (A2AAR) (IC50: 34.9 nM) andMAO-B (Ki: 39.5 nM, human). A2AAR/hMAO-B-IN-1 inhibits A2AAR-induced cAMP accumulation and exhibits competitive, reversible inhibition of MAO-B. A2AAR/hMAO-B-IN-1 can be used in the study of neurodegenerative diseases such as Parkinson's disease (PD).
    A2AAR/hMAO-B-IN-1
  • HY-70057S1
    Safinamide-d4-1
    Inhibitor 98.90%
    Safinamide-d4-1 is deuterium labeled Safinamide. Safinamide is a potent, selective, and reversible monoamine oxidase B (MAO-B) inhibitor (IC50=0.098 μM) over MAO-A (IC50=580 μM). Safinamide also blocks sodium channels and modulates glutamate (Glu) release, showing a greater affinity at depolarized (IC50=8?μM) than at resting (IC50=262?μM) potentials. Safinamide has neuroprotective and neurorescuing effects and can be used for the study of parkinson disease, ischemia stroke etc.al.
    Safinamide-d<sub>4</sub>-1
  • HY-151498
    PXS-4787
    Inhibitor
    PXS-4787 is a specific and effective pan-LOX (lysyl oxidase) inhibitor for abolishing lysyl oxidase activity. PXS-4787 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
  • HY-121072
    ASS234
    Inhibitor 99.6%
    ASS234 is a potent monoamino oxidase (MAO) inhibitor with IC50s of 5.2 nM and 43 nM for MAO-A and MAO-B, respectively. ASS234 also inhibits AChE and BuChE with IC50s of 350 nM and 460 nM, respectively.
    ASS234
  • HY-N0126R
    Xanthone (Standard)
    Inhibitor
    Xanthone (Standard) is the analytical standard of Xanthone (HY-N0126). This product is intended for research and analytical applications. Xanthone is a monoamine oxidase A (MAO-A) inhibitor with an IC50 of 0.84 µM. Xanthon inhibits Norepinephrine (HY-13715) and high-K+-induced vasoconstriction with IC50 values of 60.26 μM and 82.9 μM, respectively. Xanthon increases intracellular cyclic adenosine 3′,5′-monophosphate (cAMP) content and blocks Ca2+ channels. Xanthone is the scaffold of several pharmacologically active compounds.
    Xanthone (Standard)
Cat. No. Product Name / Synonyms Application Reactivity

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