3H-Pyrazol-3-one,5-amino-2,4-dihydro-2-phenyl-

Modify Date: 2025-09-10 11:40:35

3H-Pyrazol-3-one,5-amino-2,4-dihydro-2-phenyl- Structure
3H-Pyrazol-3-one,5-amino-2,4-dihydro-2-phenyl- structure
 Common Name 3H-Pyrazol-3-one,5-amino-2,4-dihydro-2-phenyl-
CAS Number 4149-06-8 Molecular Weight 175.18700
Density 1.34g/cm3 Boiling Point 312.3ºC at 760mmHg
Molecular Formula C9H9N3O Melting Point 210-215 °C (dec.)(lit.)
MSDS N/A Flash Point 142.7ºC

 Names

Name 3-Amino-1-phenyl-2-pyrazolin-5-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.34g/cm3
Boiling Point 312.3ºC at 760mmHg
Melting Point 210-215 °C (dec.)(lit.)
Molecular Formula C9H9N3O
Molecular Weight 175.18700
Flash Point 142.7ºC
Exact Mass 175.07500
PSA 58.69000
LogP 0.89640

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UR0393500
CHEMICAL NAME :
3H-Pyrazol-3-one, 2,4-dihydro-5-amino-2-phenyl-
CAS REGISTRY NUMBER :
4149-06-8
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C9-H9-N3-O

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD - Lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CBCCT* "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. (National Academy of Science Library, 2101 Constitution Ave., NW, Washington, DC 20418) Volume(issue)/page/year: 5,340,1953

 Safety Information

Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases S26-S37/39
WGK Germany 3
RTECS UR0393500
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

3-Amino-1-phenyl-1H-pyrazol-5(4H)-one
5-Amino-2-phenyl-1,2-dihydro-3H-pyrazol-3-one
MFCD00003137
EINECS 223-974-0
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Chemsrc provides CAS#:4149-06-8 MSDS, density, melting point, boiling point, structure, etc. Its name is 3H-Pyrazol-3-one,5-amino-2,4-dihydro-2-phenyl->> amp version: 3H-Pyrazol-3-one,5-amino-2,4-dihydro-2-phenyl-

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