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-B0886A
    Iproniazid
    Inhibitor 99.91%
    Iproniazid is an orally active, irreversible, non-selective monoamine oxidase (MAO) inhibitor. Iproniazid inhibits MAO activity and enhances Rotenone (HY-B1756)-induced Apoptosis. Iproniazid modulates neurotransmitter levels, affects neuronal function, induces hepatic necrosis, and interferes with the endocrine system. Iproniazid can be used in the research of depression, Parkinson's disease, and hepatotoxicity.
    Iproniazid
  • HY-N0126
    Xanthone
    Inhibitor 99.97%
    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
  • HY-W015490
    1,4-Naphthoquinone
    Inhibitor 99.97%
    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
  • HY-N7204
    4-Hydroxyderricin
    Inhibitor 99.97%
    4-Hydroxyderricin, the major active ingredients of Angelica keiskei Koidzumi, is an orally active, potent selective MAO-B (Monoamine oxidase inhibitors) inhibitor with an IC50 of 3.43 μM. 4-Hydroxyderricin also mildly inhibits dopamine β (DBH)-hydroxylase activity. 4-Hydroxyderricin has antidepressant activity, anti-allergic, anti-diabetic, anti-oxidant, and antitumor effects. 4-Hydroxyderricin promotes apoptosis and cell cycle arrest through regulating PI3K/AKT/mTOR pathway in hepatocellular cells. 4-Hydroxyderricin inhibits osteoclast formation and accelerates osteoblast differentiation. 4-Hydroxyderricin is promising for research of inflammatory diseases.
    4-Hydroxyderricin
  • HY-P99047
    Simtuzumab
    Inhibitor ≥99.0%
    Simtuzumab (AB 0024; GS 6624) is a monoclonal antibody directed against Lysyl oxidase like-2 (LOXL2). Simtuzumab can be used for the research of primary sclerosing cholangitis (PSC).
    Simtuzumab
  • HY-Y0470
    Semicarbazide hydrochloride
    Inhibitor ≥98.0%
    Semicarbazide hydrochloride is an orally active urea derivative. Semicarbazide hydrochloride binds to copper or iron in cells. Semicarbazide hydrochloride inhibits the activity of soluble semicarbazide sensitive amine oxidase (SSAO). Semicarbazide hydrochloride damages cartilage, blood vessels, ovaries, testicles, and thyroid follicles.
    Semicarbazide hydrochloride
  • HY-Y0265
    Isatin
    Inhibitor 99.89%
    Isatin (Indoline-2,3-dione) is a potent inhibitor of monoamine oxidase (MAO) with an IC50 of 3 μM. Also binds to central benzodiazepine receptors (IC50 against clonazepam, 123 μM). Also acts as an antagonist of both atrial natriuretic peptide stimulated and nitric oxide-stimulated guanylate cyclase activity. Shows effect on the serotonergic system.
    Isatin
  • HY-70057A
    Safinamide mesylate
    Inhibitor 99.07%
    Safinamide (FCE 26743; EMD 1195686) mesylate is a potent, selective, and reversible monoamine oxidase B (MAO-B) inhibitor (IC50=0.098 μM) over MAO-A (IC50=580 nM). Safinamide mesylate 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 mesylate has neuroprotective and neurorescuing effects and can be used for the study of parkinson disease, ischemia stroke et.al.
    Safinamide mesylate
  • HY-N0918
    Desmethoxyyangonin
    Inhibitor 99.46%
    Desmethoxyyangonin is one of the six major kavalactones found in the Piper methysticum (kava) plant. Desmethoxyyangonin is a selective inhibitor of monoamine oxidase-B (MAO-B) (IC50: 0.123  µM). Desmethoxyyangonin exerts anti-inflammatory effects by inhibiting Jak2/STAT3 and IKK signaling pathways. Desmethoxyyangonin induces CYP3A23 expression and leads to skeletal muscle relaxation.
    Desmethoxyyangonin
  • HY-138625A
    PXS-5505 anhydrous
    Inhibitor 99.88%
    PXS-5505 anhydrous (LOX-IN-3 dihydrochloride) is an orally active lysyl oxidase (LOX) inhibitor. PXS-5505 anhydrous can be used for fibrosis, cancer and angiogenesis research.
    PXS-5505 anhydrous
  • HY-111588
    Xanthoangelol
    Inhibitor 99.88%
    Xanthoangelol, extracted from Angelica keiskei, suppresses obesity-induced inflammatory responses. Xanthoangelol possesses antibacterial activity. Xanthoangelol inhibits monoamine oxidases. Xanthoangelol induces apoptosis in neuroblastoma and leukemia cells.
    Xanthoangelol
  • HY-16677A
    Mofegiline hydrochloride
    Inhibitor 99.57%
    Mofegiline hydrochloride (MDL72974A) is an orally active and selective enzyme-activated irreversible inhibitor of MAO-B, with marked selectivity on the MAO-B over MAO-A with IC50s of 3.6 nM (MAO-B) and 680 nM (MAO-A), respectively. Mofegiline hydrochloride is also an inhibitor of semicarbazide-sensitive amine oxidase (SSAO).
    Mofegiline hydrochloride
  • HY-W004850
    Aminoacetone hydrochloride
    Inhibitor ≥98.0%
    Aminoacetone hydrochloride is the simplest monopeptide. Aminoacetone hydrochloride is an intermediate in the metabolism of threonine and glycine. Aminoacetone hydrochloride is an endogenous substrate for semicarbazide-sensitive amine oxidase (SSAO), and can be used for determination of SSAO activity.
    Aminoacetone hydrochloride
  • HY-N2554
    Osthenol
    Inhibitor 99.27%
    Osthenol (Ostenol) is a reversible, selective, competitive inhibitor of hMAO-A (IC50=0.74 μM, Ki=0.26 μM), with antifungal and antibacterial activity. Osthenol inhibits the oxidative deamination of hMAO-A and regulates the metabolism of monoamine neurotransmitters. Osthenol also inhibits the PI3K/AKT signaling pathway to induce apoptosis of colon cancer cells, arrest the cell cycle at the G1 phase, and inhibit cell proliferation. Osthenol is mainly used in the study of neurological diseases and cancer, especially depression-related MAO-A targeted intervention and colon cancer.
    Osthenol
  • HY-151499A
    PXS-6302 hydrochloride
    Inhibitor 99.83%
    PXS-6302 hydrochloride 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 hydrochloride has readily skin penetrability, reduces collagen deposition and significantly improves scar appearance.
    PXS-6302 hydrochloride
  • HY-14197
    Clorgyline
    Inhibitor 99.76%
    Clorgyline (M&B 9302) is an orally active, blood-brain barrier permeable and selective monoamine oxidase A (MAO-A) inhibitor. Clorgyline's selective inhibition of MAO-A leads to reduced metabolism of neurotransmitters such as serotonin (5-hydroxytryptamine), which accumulates in the brain. Clorgyline can be used in the study of depression and neurodegenerative diseases.
    Clorgyline
  • HY-B0884A
    Minaprine dihydrochloride
    Inhibitor 99.90%
    Minaprine dihydrochloride is a reversible inhibitor of MAO-A; weakly inhibit acetylcholinesterase; an antidepressant for treatment of depression.
    Minaprine dihydrochloride
  • HY-19333
    OG-L002
    Inhibitor 99.81%
    OG-L002 is a potent and highly selective LSD1 inhibitor with an IC50 of 0.02 μM. OG-L002 is a potent monoamine oxidases (MAO) inhibitor with IC50s of 1.38 μM and 0.72 μM for MAO-A and MAO-B, respectively. OG-L002 potently inhibits the expression of HSV IE genes.
    OG-L002
  • HY-E70074
    Monoamine oxidase, plasma
    Monoamine oxidase (EC 1.4.3.4) is an enzyme composed of different polypeptides. Monoamine oxidation catalyzes the oxidative deamination of various biological amines in brain and peripheral tissues by producing hydrogen peroxide. Monoamine oxidase plays an important role in maintaining the regulation of synaptic transmission, emotional behavior and other brain functions.
    Monoamine oxidase, plasma
  • HY-149597
    Lysyl hydroxylase 2-IN-1
    Inhibitor 99.89%
    Lysyl hydroxylase 2-IN-1 (compound 12) is a selective lysyl hydroxylase 2 (LH2) Inhibitor with an IC50 of ~300 nM. Lysyl hydroxylase 2-IN-1 demonstrates selectivity for LH2 over LH1 and LH3.
    Lysyl hydroxylase 2-IN-1
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