Isocarboxazid

Modify Date: 2026-07-08 20:46:21

Isocarboxazid Structure
Isocarboxazid structure
Common Name Isocarboxazid
CAS Number 59-63-2 Molecular Weight 231.251
Density 1.2±0.1 g/cm3 Boiling Point 394.5±42.0 °C at 760 mmHg
Molecular Formula C12H13N3O2 Melting Point 98-100ºC
MSDS N/A Flash Point 192.4±27.9 °C
Symbol GHS06
GHS06
Signal Word Danger

 Use of Isocarboxazid


Isocarboxazid is a non-selective and irreversible inhibitor of monoamine oxidase, with an IC50 of 4.8 μM for rat brain monoamine oxidase in vitro[1].

Summary: Chinese name: Isocarboxazid, English name: Isocarboxazid, CAS number: 59-63-2, molecular formula: C12H13N3O2, molecular weight: 231.251. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide
Synonym More Synonyms

 Isocarboxazid Biological Activity

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description Isocarboxazid is a non-selective and irreversible inhibitor of monoamine oxidase, with an IC50 of 4.8 μM for rat brain monoamine oxidase in vitro[1].
Related Catalog
Target

IC50: 4.8 μM (rat brain monoamine oxidase)[1].

In Vivo Isocarboxazid (1, 3 mg/kg, i.p., 60 min) pretreatment in mice shows the significant increased number of head twitches at 15 and 30 min after 5-HTP[2]. Isocarboxazid (1, 3 mg/kg, i.p., 60 min) treatment in mice together with 5-HTP administration causes 43% 5-HT concentration increased and 22% of 5-HIAA decreased compared to brain concentrations in mice given 5-HTP alone[2]. Animal Model: Twelve male mice of dd strain (20-25 g)[2] Dosage: 0, 0.3,1, 3 mg/kg Administration: Intraperitoneally 60 min before intravenous injection of 5-HTP Result: The number of head twitches at 15 and 30 min after 5-HTP was increased. 43% 5-HT concentration increased and 22% of 5-HIAA decreased.
References

[1]. MAXWELL DR, et al. Relative activity of some inhibitors of mono-amine oxidase in potentiating the action of tryptamine in vitro and in vivo. Br J Pharmacol Chemother. 1961 Dec;17:310-20.

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.2±0.1 g/cm3
Boiling Point 394.5±42.0 °C at 760 mmHg
Melting Point 98-100ºC
Molecular Formula C12H13N3O2
Molecular Weight 231.251
Flash Point 192.4±27.9 °C
Exact Mass 231.100784
PSA 67.16000
LogP 1.03
Vapour Pressure 0.0±0.9 mmHg at 25°C
Index of Refraction 1.573
InChIKey XKFPYPQQHFEXRZ-UHFFFAOYSA-N
SMILES Cc1cc(C(=O)NNCc2ccccc2)no1
Storage condition -20°C Freezer

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
NY2625000
CHEMICAL NAME :
3-Isoxazolecarboxylic acid, 5-methyl-, 2-benzylhydrazide
CAS REGISTRY NUMBER :
59-63-2
BEILSTEIN REFERENCE NO. :
0201295
LAST UPDATED :
199612
DATA ITEMS CITED :
17
MOLECULAR FORMULA :
C12-H13-N3-O2
MOLECULAR WEIGHT :
231.28
WISWESSER LINE NOTATION :
T5NOJ C1 EVMM1R

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Human - woman
DOSE/DURATION :
4800 ug/kg/21W-I
TOXIC EFFECTS :
Nutritional and Gross Metabolic - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - monoamine oxidase
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
280 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
199 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
193 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
138 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
150 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
>40 mg/kg
TOXIC EFFECTS :
Gastrointestinal - nausea or vomiting
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Primate - monkey
DOSE/DURATION :
160 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
130 mg/kg
SEX/DURATION :
female 10-22 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - behavioral
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
100 mg/kg
SEX/DURATION :
female 10 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetal death
TYPE OF TEST :
DNA damage
TYPE OF TEST :
DNA damage

MUTATION DATA

TEST SYSTEM :
Rodent - mouse
DOSE/DURATION :
49 mg/kg
REFERENCE :
JTEHD6 Journal of Toxicology and Environmental Health. (Hemisphere Pub., 1025 Vermont Ave., NW, Washington, DC 20005) V.1- 1975/76- Volume(issue)/page/year: 9,287,1982 *** REVIEWS *** TOXICOLOGY REVIEW IDPYAK Industrial Pharmacology. (Mount Kisco, NY) V.1-3, 1974-79. Discontinued. Volume(issue)/page/year: 2,209,1975 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X6269 No. of Facilities: 9 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 339 (estimated) No. of Female Employees: 170 (estimated)

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol GHS06
GHS06
Signal Word Danger
Hazard Statements H301
Precautionary Statements Missing Phrase - N15.00950417
RIDADR UN 3249
Packaging Group III
Hazard Class 6.1(b)
HS Code 2934999090

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 IsocarboxazidBioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Luminescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: mu-type opioid receptor isoform MOR-1 [Homo sapiens]
External Id: OPRM1-OPRD1_AG_LUMI_1536_1X%ACT PRUN
Name: Fluorescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_AG_FLUO8_1536_1X%ACT PRUN
Name: Dicer-mediated maturation of pre-microRNA
Source: Center for Chemical Genomics, University of Michigan
Target: N/A
External Id: TargetID_659_CEMA
Name: Fluorescence-based cell-based primary high throughput screening assay to identify pos...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_PAM_FLUO8_1536_1X%ACT PRUN
Name: Fluorescence polarization-based biochemical high throughput primary assay to identify...
Source: The Scripps Research Institute Molecular Screening Center
Target: RecName: Full=Sialate O-acetylesterase; AltName: Full=H-Lse; AltName: Full=Sialic acid-specific 9-O-acetylesterase; Flags: Precursor [Homo sapiens]
External Id: SIAE_INH_FP_1536_1X%INH PRUN
Name: MITF Measured in Cell-Based System Using Plate Reader - 2084-01_Activator_SinglePoint...
Source: Broad Institute
Target: N/A
External Id: 2084-01_Activator_SinglePoint_HTS_Activity
Name: Counterscreen for inhibitors of the fructose-bisphosphate aldolase (FBA) of M. tuberc...
Source: The Scripps Research Institute Molecular Screening Center
Target: N/A
External Id: GDH-TPI_INH_ABS_1536_1X%INH CSRUN
Name: Antiviral activity determined as inhibition of SARS-CoV-2 induced cytotoxicity of Cac...
Source: ChEMBL
Target: Severe acute respiratory syndrome coronavirus 2
External Id: CHEMBL4303805
Name: Inhibition of cell viability relative to arbidol control (inhibition index > 1 indica...
Source: ChEMBL
Target: Severe acute respiratory syndrome coronavirus 2
External Id: CHEMBL4303819
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

isocarboxazide
Benazide
5-Methyl-isoxazol-3-carbonsaeure-(N'-benzyl-hydrazid)
Marplan
Isocarboxazidum
N'-Benzyl-5-methylisoxazol-3-carbohydrazid
Isocarboxazida
3-Isoxazolecarboxylic acid, 5-methyl-, 2-(phenylmethyl)hydrazide
N'-benzyl-5-méthylisoxazole-3-carbohydrazide
Isocarbonazid
Isocarboxazid
N'-benzyl-5-methylisoxazole-3-carbohydrazide
N-Benzyl-N'-<5-methyl-isoxazol-3-yl>-carbonyl-hydrazin
Isocarbossazide
N'-Benzyl-5-methyl-1,2-oxazole-3-carbohydrazide
Isocarboxyzid
Enerzer
5-methyl-isoxazole-3-carboxylic acid-(N'-benzyl-hydrazide)
isocarboxacid
5-methyl-N'-(phenylmethyl)isoxazole-3-carbohydrazide

 Isocarboxazid | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the boiling point of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: Boiling point of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide is 394.5±42.0 °C at 760 mmHg.
Q: What is the LogP of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: LogP of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide is 1.03.
Q: What are the uses of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: Main uses of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide: Isocarboxazid is a non-selective and irreversible inhibitor of monoamine oxidase, with an IC50 of 4.8 μM for rat brain monoamine oxidase in vitro[1].
Q: What is the melting point of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: Melting point of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide is 98-100ºC.
Q: What is the CAS number of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: CAS number of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide is 59-63-2.
Q: What is the SMILES notation of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: SMILES notation of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide is Cc1cc(C(=O)NNCc2ccccc2)no1.
Q: What is the polar surface area (PSA) of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: Polar surface area (PSA) of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide is 67.16000.
Q: What is the molecular weight of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: Molecular weight of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide is 231.251.
Q: What is the InChIKey of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: InChIKey of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide is XKFPYPQQHFEXRZ-UHFFFAOYSA-N.
Q: What is the molecular formula of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide?
A: Molecular formula of N'-benzyl-5-methyl-1,2-oxazole-3-carbohydrazide is C12H13N3O2.

 Isocarboxazidfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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