1H-Pyrazol-4-amine hydrochloride

Modify Date: 2025-08-25 22:09:00

1H-Pyrazol-4-amine hydrochloride Structure
1H-Pyrazol-4-amine hydrochloride structure
Common Name 1H-Pyrazol-4-amine hydrochloride
CAS Number 4331-28-6 Molecular Weight 119.55300
Density N/A Boiling Point 334.5ºC at 760 mmHg
Molecular Formula C3H6ClN3 Melting Point N/A
MSDS N/A Flash Point 182.6ºC

 Names

Name 1H-Pyrazol-4-amine hydrochloride
Synonym More Synonyms

 Chemical & Physical Properties

Boiling Point 334.5ºC at 760 mmHg
Molecular Formula C3H6ClN3
Molecular Weight 119.55300
Flash Point 182.6ºC
Exact Mass 119.02500
PSA 54.70000
LogP 1.37510

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UQ5775000
CHEMICAL NAME :
Pyrazole, 4-amino-, hydrochloride
CAS REGISTRY NUMBER :
4331-28-6
LAST UPDATED :
199012
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C3-H5-N3.Cl-H
MOLECULAR WEIGHT :
119.57
WISWESSER LINE NOTATION :
T5MNJ DZ &GH

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
300 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689

 Safety Information

Hazard Codes Xi
HS Code 2933199090

 Customs

HS Code 2933199090
Summary 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

1H-pyrazol-4-amine,hydrochloride
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