Product Name

  • Name

    ISOCARBOXAZID (200 MG)

  • EINECS
  • CAS No. 59-63-2
  • Article Data5
  • CAS DataBase
  • Density 1.206g/cm3
  • Solubility 0.8g/L(25 oC)
  • Melting Point 98-1000C
  • Formula C12H13 N3 O2
  • Boiling Point 394.5°Cat760mmHg
  • Molecular Weight 231.254
  • Flash Point 192.4°C
  • Transport Information
  • Appearance
  • Safety A poison by ingestion, intraperitoneal, and subcutaneous routes. An experimental teratogen. Other experimental reproductive effects. Human systemic effects: monoamine oxidase effects. Mutation data reported. A pharmaceutical and veterinary drug. When heated to decomposition it emits toxic fumes of NOx.
  • Risk Codes
  • Molecular Structure Molecular Structure of 59-63-2 (ISOCARBOXAZID (200 MG))
  • Hazard Symbols
  • Synonyms 3-Isoxazolecarboxylicacid, 5-methyl-, 2-benzylhydrazide (6CI,7CI,8CI); 1-Benzyl-2-(5-methyl-3-isoxazolyl-carbonyl)hydrazine;5-Methyl-3-isoxazolecarboxylic acid 2-benzylhydrazide; BMIH; Benazide; Enerzer;Isocarboxazid; Isocarboxazide; Isocarboxyzid; Marplan; Marplon; NSC 169893;N'-Benzyl N-methyl-5-isoxazolecarboxylhydrazide-3; Ro 5-0831
  • PSA 67.16000
  • LogP 2.19940

Isocarboxazid Chemical Properties

IUPAC Name: N'-Benzyl-5-methyl-1,2-oxazole-3-carbohydrazide
Synonyms of Isocarboxazid (CAS NO.59-63-2) : 3-Isoxazolecarboxylic acid, 5-methyl-, 2-(phenylmethyl)hydrazide ; 5-Methyl-N'-(phenylmethyl)isoxazole-3-carbohydrazide ; N'-Benzyl-5-methyl-1,2-oxazole-3-carbohydrazide ; 3-(N-Benzylhydrazinocarbonyl)-5-methylisoxazole 
Product Categories: All Inhibitors;Inhibitors;Intermediates & Fine Chemicals;Pharmaceuticals
CAS NO:59-63-2
Molecular Formula:C12H13N3O2
Molecular Weight : 231.2505
Molecular Structure :
EINECS: 200-438-4
Index of Refraction:1.573
Surface Tension: 48.7 dyne/cm
Density: 1.206 g/cm3
Flash Point: 192.4 °C
Melting point: 98-100°C
Enthalpy of Vaporization: 64.45 kJ/mol
Boiling Point: 394.5 °C at 760 mmHg
Vapour Pressure: 1.97E-06 mmHg at 25°C 
Appearance:Pale Yellow Solid

Isocarboxazid Uses

 Isocarboxazid (CAS NO.59-63-2) (Enerzer, Marplan, Marplon) is an irreversible and nonselective monoamine oxidase inhibitor (MAOI) of the hydrazine chemical class used as an antidepressant and anxiolytic. It is one of the few hydrazine MAOIs still in clinical use, along with phenelzine.

Isocarboxazid Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LD50 oral > 40mg/kg (40mg/kg) GASTROINTESTINAL: NAUSEA OR VOMITING Annals of the New York Academy of Sciences. Vol. 80, Pg. 626, 1959.
monkey LD50 oral 160mg/kg (160mg/kg)   Annals of the New York Academy of Sciences. Vol. 80, Pg. 626, 1959.
mouse LD50 intraperitoneal 138mg/kg (138mg/kg)   Journal of Medicinal and Pharmaceutical Chemistry. Vol. 2, Pg. 133, 1960.
mouse LD50 oral 193mg/kg (193mg/kg)   Annals of the New York Academy of Sciences. Vol. 80, Pg. 626, 1959.
mouse LD50 subcutaneous 150mg/kg (150mg/kg)   Toxicology and Applied Pharmacology. Vol. 39, Pg. 141, 1977.
rat LD50 intraperitoneal 199mg/kg (199mg/kg)   "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972Vol. -, Pg. 240, 1972.
rat LD50 oral 280mg/kg (280mg/kg)   Annals of the New York Academy of Sciences. Vol. 80, Pg. 626, 1959.
women TDLo oral 4800ug/kg/21W (4.8mg/kg)   Journal of Clinical Pyschopharmacology. Vol. 3, Pg. 42, 1983.
women TDLo oral 4800ug/kg/21W (4.8mg/kg)   Journal of Clinical Pyschopharmacology. Vol. 3, Pg. 42, 1983.

Isocarboxazid Safety Profile

A poison by ingestion, intraperitoneal, and subcutaneous routes. An experimental teratogen. Other experimental reproductive effects. Human systemic effects: monoamine oxidase effects. Mutation data reported. A pharmaceutical and veterinary drug. When Isocarboxazid (CAS NO.59-63-2) is heated to decomposition, it emits toxic fumes of NOx.

RIDADR 3249
HazardClass 6.1(b)
PackingGroup III

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