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-Y1750
    β-Aminopropionitrile
    Inhibitor 99.99%
    β-Aminopropionitrile (BAPN) is a specific, irreversible and orally active lysyl oxidase (LOX) inhibitor. β-Aminopropionitrile targets the active site of LOX or LOXL isoenzymes.
    β-Aminopropionitrile
  • HY-N0529
    Rosmarinic acid
    Inhibitor 99.70%
    Rosmarinic acid is a widespread phenolic ester compound in the plants. Rosmarinic acid inhibits MAO-A, MAO-B and COMT enzymes with IC50s of 50.1, 184.6 and 26.7 μM, respectively.
    Rosmarinic acid
  • HY-17447A
    Tranylcypromine hydrochloride
    Inhibitor 99.90%
    Tranylcypromine hydrochloride (SKF 385 hydrochloride) is an irreversible inhibitor of lysine-specific demethylase 1 (LSD1/BHC110) and monoamine oxidase (MAO). Tranylcypromine hydrochloride inhibits LSD1, MAO A and MAO B with IC50s of 20.7, 2.3 and 0.95 μM, respectively. Tranylcypromine hydrochloride can be used for the research of depression.
    Tranylcypromine hydrochloride
  • HY-14197A
    Clorgyline hydrochloride
    Inhibitor 99.92%
    Clorgyline hydrochloride is an irreversible and selective inhibitor of monoamine oxidase A (MAO-A) that is used in scientific research, structurally related to Pargyline (HY-A0091A). Clorgyline hydrochloride has little effect on the amounts of conjugated dopamine (DA) present in superfusate of slices from rat striatum. Clorgyline hydrochloride contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Clorgyline hydrochloride
  • HY-14536
    Methylene Blue
    Inhibitor 98.08%
    Methylene blue (Basic Blue 9) is a guanylyl cyclase (sGC), monoamine oxidase A (MAO-A) and NO synthase (NOS) inhibitor. Methylene blue is a vasopressor and is often used as a dye in several medical procedures. Methylene blue through the nitric oxide syntase/guanylate cyclase signalling pathway to reduce prepulse inhibition. Methylene blue is a REDOX cycling compound and able to cross the blood-brain barrier. Methylene blue is a Tau aggregation inhibitor. Methylene blue reduces cerebral edema, attenuated microglial activation and reduced neuroinflammation.
    Methylene Blue
  • HY-14199
    Selegiline hydrochloride
    Inhibitor 99.94%
    Selegiline (Deprenyl) hydrochloride is a potent, selective and irreversible inhibitor of MAO-B, with an IC50 of 51 nM. Selegiline hydrochloride exhibits 450-flod selectivity for MAO-B over MAO-A (IC50=23 μM). Selegiline hydrochloride can be used for the research of Parkinson's disease, Alzheimer's disease and major depressive disorder.
    Selegiline hydrochloride
  • HY-B1018A
    Phenelzine sulfate
    Inhibitor 99.96%
    Phenelzine sulfate is a non-selective and irreversible monoamine oxidase inhibitor (MAOI), used as an antidepressant and anxiolytic.
    Phenelzine sulfate
  • HY-164099
    LSD1/HDAC6-IN-2
    Inhibitor 99.66%
    LSD1/HDAC6-IN-2 (JBI-802) is an orally active LSD1/HDAC6/MAO-A inhibitor, with IC50 values of 5 nM, 11 nM, and 5 nM, respectively. LSD1/HDAC6-IN-2 can inhibit the growth of multiple myeloma cells MM.1S, MM.1R, and RPMI-8226. LSD1/HDAC6-IN-2 can be used for research on diseases such as acute myeloid leukemia and lymphoma.
    LSD1/HDAC6-IN-2
  • HY-B1496
    Tranylcypromine hemisulfate
    Inhibitor 99.94%
    Tranylcypromine (SKF 385) hemisulfate is an irreversible, nonselective monoamine oxidase (MAO) inhibitor used in the treatment of depression. Tranylcypromine hemisulfate is also a lysine-specific demethylase 1 (LSD1) inhibitor, suppresses lesion growth and improves generalized hyperalgesia in mouse with induced endometriosis. Tranylcypromine has antidepressant effects.
    Tranylcypromine hemisulfate
  • HY-N0453
    Hypericin
    Inhibitor 98.03%
    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
  • HY-N0159
    Paeonol
    Inhibitor 99.98%
    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
  • HY-100546A
    GSK-LSD1 dihydrochloride
    Inhibitor ≥98.0%
    GSK-LSD1 dihydrochloride is a potent, selective and irreversible lysine specific demethylase 1 (LSD1) inhibitor with an IC50 of 16 nM.
    GSK-LSD1 dihydrochloride
  • HY-101771A
    (2-Chloropyridin-4-yl)methanamine hydrochloride
    99.70%
    (2-Chloropyridin-4-yl)methanamine hydrochloride is a selective LOXL2 inhibitor with an IC50 of 126 nM.
    (2-Chloropyridin-4-yl)methanamine hydrochloride
  • HY-A0091A
    Pargyline
    Inhibitor 99.77%
    Pargyline is an irreversible monoamine oxidase (MAO) inhibitor with Kis of 13 μM and 0.5 μM for MAO-A and MAO-B, respectively. Pargyline has antihypertensive and anticancer activities. Pargyline is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Pargyline
  • HY-A0091
    Pargyline hydrochloride
    Inhibitor 99.91%
    Pargyline hydrochloride is an irreversible monoamine oxidase (MAO) inhibitor with Kis of 13 μM and 0.5 μM for MAO-A and MAO-B, respectively. Pargyline hydrochloride has antihypertensive and anticancer activities. Pargyline (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Pargyline hydrochloride
  • HY-Y0882
    Hydroxylamine hydrochloride
    Inhibitor 99.50%
    Hydroxylamine hydrochloride is a selective monoamine oxidase (MAO) inhibitor used for inhibiting of platelet aggregation. Hydroxylamine hydrochloride is an intermediate of organic synthesis.
    Hydroxylamine hydrochloride
  • HY-W008566
    Norharmane
    Inhibitor 99.46%
    Norharmane (Norharman), a β-carboline alkaloid, is a potent and reversible monoamine oxidase inhibitor, with IC50 values of 6.5 and 4.7 μM for MAO-A and MAO-B, respectively. Norharmane causes antidepressant responses. Norharmane is also a prospective anti-cancer photosensitizer. Norharmane alters polar auxin transport (PAT) by inhibiting PIN2, PIN3 and PIN7 transport proteins, thus causing a significant inhibitory effect on the growth of Arabidopsis thaliana seedlings.
    Norharmane
  • HY-B0534
    Moclobemide
    Inhibitor 99.90%
    Moclobemide (Ro111163) is a brain-penetrant and reversible monoamine oxidase (MAO-A) inhibitor with an IC50 of 6.061 μM for hMAO-A.Moclobemide up-regulates proliferation of hippocampal progenitor cells in chronically stressed mice.
    Moclobemide
  • HY-14605A
    Rasagiline
    Inhibitor 99.88%
    Rasagiline (R-AGN1135) is a highly potent selective irreversible mitochondrial monoamine oxidase (MAO) inhibitor with IC50s of 4.43?nM and 412?nM for rat brain MAO B and A activity, respectively. Rasagiline is a click chemistry reagent, itcontains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Rasagiline
  • HY-B1311
    Proadifen hydrochloride
    Inhibitor 99.98%
    Proadifen (SKF-525A) hydrochloride is a non-competitive Cytochrome P450 inhibitor with an IC50 value of 19 μM. Proadifen hydrochloride reduces monoamine oxidase A (MAO-A) activity and reverses the antidepressantlike behavioral effect of Imipramine (HY-B1490A) and Desipramine (HY-B1272A) in rats. Proadifen hydrochloride also reduces N, N-dimethyltryptamine (DMT) metabolism in liver microsomes and inhibits N-demethylationand Acridone (HY-W007771) formation. Proadifen hydrochloride augments Lipopolysaccharide (LPS) (HY-D1056)-induced fever and exacerbates Prostaglandin E2 (PGE2) (HY-101952) levels in the rat. Proadifen hydrochloride is promising for research of metabolism-related deseases, ovarian carcinoma, inflammation and dopamine neurons-related deseases.
    Proadifen hydrochloride
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