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-13339
    Brofaromine
    		Inhibitor 99.60%
    Brofaromine (CGP 11305A) is a monoamine oxidase (MAO) inhibitor with IC50 of 0.2 μM for MAO-A.
    Brofaromine
  • HY-101578
    2614W94
    		Inhibitor 99.76%
    2614W94 is a selective, reversible and orally active monoamine oxidase-A (MAO-A) inhibitor with an IC50 of 5 nM and a Ki of 1.6 nM. 2614W94 shows no significant inhibition of MAO-B. 2614W94 has antidepressant and anxiolytic effects.
    2614W94
  • HY-W224327
    Pheniprazine
    		Inhibitor
    Pheniprazine is a potent and long acting inhibitor of monoamine oxidase. Pheniprazine has the potential for the research of depression.
    Pheniprazine
  • HY-W224327A
    Pheniprazine hydrochloride
    		Inhibitor 98.08%
    Pheniprazine hydrochloride is a potent and long acting inhibitor of monoamine oxidase. Pheniprazine has the potential for the research of depression.
    Pheniprazine hydrochloride
  • HY-W015490S
    1,4-Naphthoquinone-d6
    		Inhibitor 99.20%
    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.
    1,4-Naphthoquinone-d<sub>6</sub>
  • 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-17447AG
    Tranylcypromine hydrochloride (GMP)
    		Inhibitor
    Tranylcypromine (SKF 385) hydrochloride (GMP) is Tranylcypromine hydrochloride (HY-17447A) produced by using GMP guidelines. GMP small molecules work appropriately as an auxiliary reagent for cell therapy manufacture. Tranylcypromine hydrochloride is a potent monoamine oxidase (MAO) inhibitor.
    Tranylcypromine hydrochloride (GMP)
  • HY-U00015
    MAO-IN-1
    		Inhibitor 99.0%
    MAO-IN-1 is a monoamine oxidase B (MAO B) inhibitor with an IC50 of 20 nM.
    MAO-IN-1
  • HY-14895
    Fabomotizole
    		Inhibitor 99.96%
    Fabomotizole (CM346) is an insecticide with anxiolytic, antianxiety, and neuroprotective activities and a substrate of p-glycoprotein. Fabomotizole inhibits the ST-segment depression induced by isoproterenol in a rat model of acute subendocardial ischemia. Fabomotizole also inhibits Giardia lamblia and has the potential to inhibit giardiasis. Fabomotizole also targets Sigma1R, NRH:quinone reductase 2 (NQO2), and MAO-A to exert anxiolytic effects.
    Fabomotizole
  • HY-101392A
    Harmane hydrochloride
    		Inhibitor
    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).
    Harmane hydrochloride
  • HY-107422A
    Lenumlostat hydrochloride
    PAT-1251 Hydrochloride is a potent, selective and oral lysyl oxidase-like 2 (LOXL2) inhibitor, with IC50s of 0.71 and 1.17 μM for hLOXL2 and hLOXL3, respectively, and also potently inhibits mouse, rat, and dog LOXL2 (IC50s, 0.10, 0.12, and 0.16 μM, respectively). PAT-1251 Hydrochloride is used in the research of fibrotic diseases.
    Lenumlostat hydrochloride
  • HY-172451
    MC4762
    		Inhibitor
    MC4762 is an inhibitor of NOX2 and MAOB, with IC50 values of 0.155 μM and 0.182 μM, respectively. MC4762 has anti-inflammatory activity, can inhibit the production of ROS, and downregulate the expression of pro-inflammatory cytokines iNOS, IL-1β, and IL-6.
    MC4762
  • HY-14200A
    (S)-Rasagiline mesylate
    		Inhibitor
    (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.
    (S)-Rasagiline mesylate
  • HY-14198
    Selegiline
    		Inhibitor
    Selegiline (Deprenyl) is a potent, selective and irreversible inhibitor of MAO-B, with an IC50 of 51 nM. Selegiline exhibits 450-flod selectivity for MAO-B over MAO-A (IC50=23 μM). Selegiline can be used for the research of Parkinson's disease, Alzheimer's disease and major depressive disorder.
    Selegiline
  • HY-142706
    MAO A/HDAC-IN-1
    		Inhibitor
    MAO A/HDAC-IN-1 is a dual?inhibitor?of monoamine oxidase A (MAO A) and HDAC. MAO A/HDAC-IN-1 can be used for glioma research. MAO A/HDAC-IN-1 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    MAO A/HDAC-IN-1
  • HY-138625B
    PXS-5505
    		Inhibitor
    PXS-5505 (LOX-IN-3 dihydrochloride monohydrate) (Compound 33) is an orally active lysyl oxidase (LOX) inhibitor. PXS-5505 can be used for fibrosis, cancer and angiogenesis research.
    PXS-5505
  • HY-139607
    SSAO inhibitor-1
    		Inhibitor
    SSAO inhibitor-1 is a semicarbazide-sensitive amine oxidase (SSAO) inhibitor. SSAO inhibitor-1 has anti-inflammatory activity and can be used for liver diseases research.
    SSAO inhibitor-1
  • HY-157400
    hMAO-B-IN-7
    		Inhibitor
    hMAO-B-IN-7 (compound 11n) is a potent and blood–brain barrier (BBB) penetrable inhibitor of human monoamine oxidase-B (hMAO-B), with the IC50 value of 0.79±0.05 μM. hMAO-B-IN-7 can be used for Alzheimer’s disease (AD) and Parkinson’s disease (PD) research.
    hMAO-B-IN-7
  • HY-170887
    MAO-B-IN-39
    		Inhibitor
    MAO-B-IN-39 (compound11) is a selective monoamine oxidase B (MAO-B) inhibitor. MAO-B-IN-39 inhibits MAO-Bwith 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.
    MAO-B-IN-39
  • HY-149984
    MAO-B-IN-21
    		Inhibitor
    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.
    MAO-B-IN-21
Cat. No. Product Name / Synonyms Application Reactivity
Monoamine Oxidase Isoform Comparison

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