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.


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MAO-B-IN-14

MAO-B-IN-14 (Compound 9) is a potent and selective monoamine oxidase-B (MAO-B) inhibitor with an IC50 of 0.95 μM and a Ki of 0.55 μM against human MAO-B.

  • CAS Number: 1904610-48-5
  • MF: C17H14O3S
  • MW: 298.36
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

KDS2010

KDS2010 (KDS-2010, KDS 2010) is a potent, highly selective, reversible Monoamine oxidase-B (MAO-B) inhibitor with IC50 of 7.6 nM; displays 12,500-fold selectivity over MAO-A; shows a marked enantiomer selectivity (eightfold selectivity) over the (R)-isomer; significantly ameliorates the impairments in spike probability, learning, and memory in APP/PS1 mice, but not by selegiline, also reverses spatial learning and memory impairments in the Morris water maze test.

  • CAS Number: 1894207-44-3
  • MF: C17H17F3N2O
  • MW: 322.331
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CX-157

CX-157 is a reversible inhibitor of monoamine oxidase-A (MAO-A) with an EC50 of 19.3 ng/mL.

  • CAS Number: 205187-53-7
  • MF: C14H8F4O4S
  • MW: 348.27000
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Harmol

Harmol categorized as a β-carboline alkaloid. Harmol is a potent MAO inhibitor used as an analytical reference standard[1].

  • CAS Number: 487-03-6
  • MF: C12H10N2O
  • MW: 198.22100
  • Catalog: Monoamine Oxidase
  • Density: 1.33g/cm3
  • Boiling Point: 552.7ºC at 760mmHg
  • Melting Point: 231ºC
  • Flash Point: 255ºC

Eprobemide

Eprobemide is a non-competitive reversible inhibitor of monoamine oxidase A.

  • CAS Number: 87940-60-1
  • MF: C14H19ClN2O2
  • MW: 282.76600
  • Catalog: Monoamine Oxidase
  • Density: 1.181g/cm3
  • Boiling Point: 461.2ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 232.7ºC

Norharmane

Norharmane (Norharman), isolated from coffee, is a potent and selective monoamine oxidase A (MAO-A) inhibitor with a Ki of 3.34 μM[1].

  • CAS Number: 244-63-3
  • MF: C11H8N2
  • MW: 168.195
  • Catalog: Monoamine Oxidase
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 391.3±15.0 °C at 760 mmHg
  • Melting Point: 219-221 ºC
  • Flash Point: 182.1±11.7 °C

Contezolid acefosamil sodium

Contezolid acefosamil sodium (MRX-4), a new and orally active oxazolidinone, is an antibiotic in study for complicated skin and soft tissue infections (cSSTI) caused by resistant Gram-positive bacteria. Contezolid acefosamil sodium (MRX-4) markedly reduces potential for myelosuppression and monoamine oxidase inhibition (MAOI)[1][2].

  • CAS Number: 1807365-35-0
  • MF: C20H17F3N4NaO8P
  • MW: 552.33
  • Catalog: Bacterial
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Safinamide Mesylate

Safinamide mesylate mesylate (FCE 26743 mesylate; EMD 1195686 mesylate) is a potent, selective, and reversible monoamine oxidase B (MAO-B) inhibitor (IC50=0.098 µM) over MAO-A (IC50=580 µM)[1]. 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 etc.al[2][3].

  • CAS Number: 202825-46-5
  • MF: C18H23FN2O5S
  • MW: 398.449
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: 476.7ºC at 760 mmHg
  • Melting Point: 210° (dec)
  • Flash Point: 242.1ºC

Kynuramine Dihydrobromide

Kynuramine (dihydrobromide), an endogenously occurring amine, is a fluorescent substrate and probe of plasma amine oxidase[1][2].

  • CAS Number: 304-47-2
  • MF: C9H14Br2N2O
  • MW: 326.02800
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: 367.3ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 175.9ºC

N'-propan-2-ylpyridine-4-carbohydrazide

Iproniazid is a non-selective, irreversible monoamine oxidase (MAO) inhibitor of the hydrazine class. Iproniazid has antidepressive activity[1].

  • CAS Number: 54-92-2
  • MF: C9H13N3O
  • MW: 179.21900
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MAO-IN-3

MAO-IN-3 (Compound 5) is a reversible and competitive MAO inhibitor (Ki: 0.6 and 0.2 μM for MAO A and MAO B). MAO-IN-3 inhibits LN-229 glioblastoma cell proliferation with an IC50 of 0.8 μM. MAO-IN-3 can be used for cancer research[1].

  • CAS Number: 797805-26-6
  • MF: C42H54N4O4
  • MW: 678.90
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Harmaline

Harmaline is a potent and reversible monoamine oxidase inhibitor in vivo. Harmaline is a central nervous system stimulant and can be used to induce tremor in rodents.

  • CAS Number: 304-21-2
  • MF: C13H14N2O
  • MW: 214.263
  • Catalog: Monoamine Oxidase
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 426.4±45.0 °C at 760 mmHg
  • Melting Point: 232-234 °C(lit.)
  • Flash Point: 211.7±28.7 °C

OG-L002

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 IEgenes[1].

  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 416.7±45.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 205.8±28.7 °C

Verbasoside

Decaffeoylacteoside is an inhibitor of AChE/BChE/LOX with moderate activity[1].

  • CAS Number: 61548-34-3
  • MF: C20H30O12
  • MW: 462.44500
  • Catalog: AChE
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Modaline sulfate

Modaline Sulfate is a MAO inhibitor, used in the treatment of depression.

  • CAS Number: 2856-75-9
  • MF: C10H17N3O4S
  • MW: 275.32500
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: 294.2ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 131.7ºC

MAO-B-IN-8

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[1].

  • CAS Number: 1638956-60-1
  • MF: C18H16O6
  • MW: 328.32
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Annh31

AnnH31 is a potent Inhibitor of DYRK1A Kinase.

  • CAS Number: 241809-12-1
  • MF: C15H13N3O
  • MW: 251.28
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MAO-B-IN-27

MAO-B-IN-27 (Compound 12c) is a monoamine oxidase B (MAO-B) inhibitor. MAO-B-IN-27 has potent and selective MAO-B inhibitory effect for hMAO-B with an IC50 values of 8.9 nM. MAO-B-IN-27 can be used for the research of parkinson's disease (PD)[1].

  • CAS Number: 788824-83-9
  • MF: C16H17ClF3NO
  • MW: 331.76
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Isoquinoline,1-[(3,4-diethoxyphenyl)methyl]-6,7-diethoxy-, hydrochloride (1:1)

Ethaverine hydrochloride, a derivative of papaverine, inhibits cardiac L-type calcium channel. Ethaverine hydrochloride is a peripheral vasodilator and antispasmodic agent. Ethaverine hydrochloride can be used for research of peripheral vascular disease[1][2][3].

  • CAS Number: 985-13-7
  • MF: C24H30ClNO4
  • MW: 431.95200
  • Catalog: Bacterial
  • Density: 1.104g/cm3
  • Boiling Point: 527.1ºC at 760 mmHg
  • Melting Point: 187ºC
  • Flash Point: 185.9ºC

MAO-B-IN-11

MAO-B-IN-11 (Compound 8c) is a potent monoamine oxidase B (MAO-B) inhibitor with an IC50 of 1.3 μM. MAO-B-IN-11 shows a neuroprotective activity[1].

  • CAS Number: 192383-78-1
  • MF: C22H32O3
  • MW: 344.49
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Hydroxyamine hydrochloride

Hydroxyamine hydrochloride is a selective monoamine oxidase (MAO) inhibitor used for inhibiting of platelet aggregation. Hydroxyamine hydrochloride is an intermediate of organic synthesis[1].

  • CAS Number: 5470-11-1
  • MF: ClH4NO
  • MW: 69.491
  • Catalog: Monoamine Oxidase
  • Density: 1.67 g/mL at 25 °C(lit.)
  • Boiling Point: 56.5ºC at 760mmHg
  • Melting Point: 155-157 °C (dec.)(lit.)
  • Flash Point: N/A

3-aminopropanenitrile,hydrochloride

β-Aminopropionitrile (BAPN) hydrochloride is a specific, irreversible and orally active lysyl oxidase (LOX) inhibitor. β-Aminopropionitrile hydrochloride targets the active site of LOX or LOXL isoenzymes[1][2].

  • CAS Number: 646-03-7
  • MF: C3H7ClN2
  • MW: 106.55400
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MAO-IN-1

MAO-IN-1 is a monoamine oxidase B (MAO B) inhibitor with an IC50 of 20 nM.

  • CAS Number: 124991-40-8
  • MF: C17H19ClO4
  • MW: 322.78
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

1-Methyl-2-undecylquinolin-4(1H)-one

1-Methyl-2-undecyl-4(1H)-quinolone is a potent, irreversible and selective inhibitor of type B monoamine oxidase (MAO-B). 1-Methyl-2-undecyl-4(1H)-quinolone shows a selective inhibition of MAO-B activity with the IC50 and Ki values of 15.3 μM and 9.91 μM, respectively, but did not inhibit type A MAO (MAO-A) activity. Methyl-2-undecyl-4(1H)-quinolone, as a quinolone alkaloid, is isolated from fresh leaves and fruits of Evodia rutaecarpa HOOK. f. et THOMS[1][2].

  • CAS Number: 59443-02-6
  • MF: C21H31NO
  • MW: 313.477
  • Catalog: Monoamine Oxidase
  • Density: 1.0±0.1 g/cm3
  • Boiling Point: 419.9±45.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 141.0±18.1 °C

2-NAPHTHALENAMINE, 1,2,3,4-TETRAHYDRO-N-2-PROPYNYL-, HYDROCHLORIDE

2-PAT, an analogue of Rasagiline and Selegiline, a reversible MAO-A inhibitor with an IC50 of 0.721 µM. 2-PAT is an inactivator of MAO-B with an IC50 of 14.6 µM. 2-PAT has the potential for Parkinson’s disease and depression research[1].

  • CAS Number: 134467-58-6
  • MF: C13H16ClN
  • MW: 221.726
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Minaprine (dihydrochloride)

Minaprine 2Hcl is a reversible inhibitor of MAO-A; weakly inhibit acetylcholinesterase; an antidepressant for treatment of depression.

  • CAS Number: 25953-17-7
  • MF: C17H24Cl2N4O
  • MW: 371.30
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: 531.2ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 275.1ºC

Salsolidine

Salsolidine is a tetrahydroisoquinoline alkaloid, acts as a stereoselective competitive MAO A inhibitor.

  • CAS Number: 5784-74-7
  • MF: C12H17NO2
  • MW: 207.26900
  • Catalog: Monoamine Oxidase
  • Density: 1.034g/cm3
  • Boiling Point: 313.4ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 127.1ºC

Clorgyline hydrochloride

Clorgyline hydrochloride is an irreversible and selective inhibitor of monoamine oxidase A (MAO-A) that is used in scientific research; structurally related to Pargyline.

  • CAS Number: 17780-75-5
  • MF: C13H16Cl3NO
  • MW: 308.631
  • Catalog: Monoamine Oxidase
  • Density: N/A
  • Boiling Point: 361.3ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 172.3ºC

Cassiaside B2

Cassiaside B2 is a protein tyrosine phosphatase 1B (PTP1B) and human monoamine oxidase A (hMAO-A) inhibitor. Cassiaside B2 possesses antiallergic and is a 5-HT2C receptor agonist[1][2].[3]..

  • CAS Number: 218155-40-9
  • MF: C39H52O25
  • MW: 920.82
  • Catalog: 5-HT Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ECKOL

Eckol is a potent hMAO-A (Mixed) and hMAO-B (non-competitive) inhibitor with IC50s of 7.20 and 83.44 μM, respectively. Eckol shows stimulatory effects in maize and can be used as a plant biostimulant. Eckol also shows antiallergic and antiviral effects[1][2][3][4].

  • CAS Number: 88798-74-7
  • MF: C18H12O9
  • MW: 372.28200
  • Catalog: Influenza Virus
  • Density: 1.778g/cm3
  • Boiling Point: 685.5ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 368.4ºC