(4-chlorophenyl)-(1,5-diphenylpyrazol-4-yl)diazene

Modify Date: 2025-09-20 13:27:34

(4-chlorophenyl)-(1,5-diphenylpyrazol-4-yl)diazene Structure
(4-chlorophenyl)-(1,5-diphenylpyrazol-4-yl)diazene structure
 Common Name (4-chlorophenyl)-(1,5-diphenylpyrazol-4-yl)diazene
CAS Number 40640-31-1 Molecular Weight 358.82400
Density 1.23g/cm3 Boiling Point 555.5ºC at 760 mmHg
Molecular Formula C21H15ClN4 Melting Point N/A
MSDS N/A Flash Point 289.7ºC

 Names

Name (4-chlorophenyl)-(1,5-diphenylpyrazol-4-yl)diazene
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.23g/cm3
Boiling Point 555.5ºC at 760 mmHg
Molecular Formula C21H15ClN4
Molecular Weight 358.82400
Flash Point 289.7ºC
Exact Mass 358.09900
PSA 42.54000
LogP 6.60810
Index of Refraction 1.656
InChIKey KWIXZSACCQQVEB-UHFFFAOYSA-N
SMILES Clc1ccc(N=Nc2cnn(-c3ccccc3)c2-c2ccccc2)cc1

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UQ6457000
CHEMICAL NAME :
1H-Pyrazole, 4-((4-chlorophenyl)azo)-1,5-diphenyl-
CAS REGISTRY NUMBER :
40640-31-1
BEILSTEIN REFERENCE NO. :
0692319
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C21-H15-Cl-N4
MOLECULAR WEIGHT :
358.85

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
320 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 62,494,1973

 Synonyms

4-((4-Chlorophenyl)azo)-1,5-diphenyl-1H-pyrazole
1,5-Diphenyl-4-(4'-chlorphenyl)azo-pyrazol
1H-Pyrazole,4-((4-chlorophenyl)azo)-1,5-diphenyl
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Chemsrc provides CAS#:40640-31-1 MSDS, density, melting point, boiling point, structure, etc. Its name is (4-chlorophenyl)-(1,5-diphenylpyrazol-4-yl)diazene>> amp version: (4-chlorophenyl)-(1,5-diphenylpyrazol-4-yl)diazene

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