3-Methyl-4-phenylhydrazino-2-pyrazolin-5-one

Modify Date: 2025-10-02 20:08:19

3-Methyl-4-phenylhydrazino-2-pyrazolin-5-one Structure
3-Methyl-4-phenylhydrazino-2-pyrazolin-5-one structure
 Common Name 3-Methyl-4-phenylhydrazino-2-pyrazolin-5-one
CAS Number 74037-30-2 Molecular Weight 204.22800
Density 1.34g/cm3 Boiling Point N/A
Molecular Formula C10H12N4O Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name 3-methyl-4-(2-phenylhydrazinyl)-1,4-dihydropyrazol-5-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.34g/cm3
Molecular Formula C10H12N4O
Molecular Weight 204.22800
Exact Mass 204.10100
PSA 65.52000
LogP 0.70570
Index of Refraction 1.665

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UQ9650000
CHEMICAL NAME :
2-Pyrazolin-5-one, 3-methyl-4-phenylhydrazino-
CAS REGISTRY NUMBER :
74037-30-2
LAST UPDATED :
197901
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C10-H12-N4-O
MOLECULAR WEIGHT :
204.26
WISWESSER LINE NOTATION :
T5NMV DHJ DMMR& E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
180 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#04912

 Safety Information

HS Code 2933990090

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

3-Methyl-4-phenylhydrazino-2-pyrazolin-5-one
2-Pyrazolin-5-one,3-methyl-4-phenylhydrazino
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Chemsrc provides CAS#:74037-30-2 MSDS, density, melting point, boiling point, structure, etc. Its name is 3-Methyl-4-phenylhydrazino-2-pyrazolin-5-one>> amp version: 3-Methyl-4-phenylhydrazino-2-pyrazolin-5-one

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