3-(1-Phenyl-1H-pyrazol-5-yl)-1,2,3-benzotriazin-4(3H)-one

Modify Date: 2025-08-25 18:23:03

3-(1-Phenyl-1H-pyrazol-5-yl)-1,2,3-benzotriazin-4(3H)-one Structure
3-(1-Phenyl-1H-pyrazol-5-yl)-1,2,3-benzotriazin-4(3H)-one structure
 Common Name 3-(1-Phenyl-1H-pyrazol-5-yl)-1,2,3-benzotriazin-4(3H)-one
CAS Number 131073-49-9 Molecular Weight 289.29100
Density 1.38g/cm3 Boiling Point 479.4ºC at 760 mmHg
Molecular Formula C16H11N5O Melting Point N/A
MSDS N/A Flash Point 243.7ºC

 Names

Name 3-(2-phenylpyrazol-3-yl)-1,2,3-benzotriazin-4-one

 Chemical & Physical Properties

Density 1.38g/cm3
Boiling Point 479.4ºC at 760 mmHg
Molecular Formula C16H11N5O
Molecular Weight 289.29100
Flash Point 243.7ºC
Exact Mass 289.09600
PSA 65.60000
LogP 1.96640
Vapour Pressure 2.37E-09mmHg at 25°C
Index of Refraction 1.736

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DM0996000
CHEMICAL NAME :
1,2,3-Benzotriazin-4(3H)-one, 3-(1-phenyl-1H-pyrazol-5-yl)-
CAS REGISTRY NUMBER :
131073-49-9
LAST UPDATED :
199612
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C16-H11-N5-O
MOLECULAR WEIGHT :
289.32

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FRMCE8 Farmaco. (Societa Chimica Italiana, Corso Strada Nova, 86, Casella Postale 227, 27100 Pavia, Italy) V.44- 1989- Volume(issue)/page/year: 45,391,1990
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
900 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FRMCE8 Farmaco. (Societa Chimica Italiana, Corso Strada Nova, 86, Casella Postale 227, 27100 Pavia, Italy) V.44- 1989- Volume(issue)/page/year: 45,391,1990
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Chemsrc provides CAS#:131073-49-9 MSDS, density, melting point, boiling point, structure, etc. Its name is 3-(1-Phenyl-1H-pyrazol-5-yl)-1,2,3-benzotriazin-4(3H)-one>> amp version: 3-(1-Phenyl-1H-pyrazol-5-yl)-1,2,3-benzotriazin-4(3H)-one

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