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Basic Information
CAS No.: 2491-76-1
Name: 4'-CHLORO-4-DIMETHYLAMINOAZOBENZENE
Molecular Structure:
Molecular Structure of 2491-76-1 (4'-CHLORO-4-DIMETHYLAMINOAZOBENZENE)
Formula: C14H14 Cl N3
Molecular Weight: 259.738
Synonyms: Aniline,p-[(p-chlorophenyl)azo]-N,N-dimethyl- (6CI,7CI,8CI); Benzenamine,4-[(4-chlorophenyl)azo]-N,N-dimethyl- (9CI);4-(Dimethylamino)-4'-chloroazobenzene; 4-Chloro-4'-(dimethylamino)azobenzene;4-[(4-Chlorophenyl)azo]-N,N-dimethylaniline;4'-Chloro-4-dimethylaminoazobenzene; 4'-Chloro-N,N-dimethyl-4-aminoazobenzene
Density: 1.13g/cm3
Melting Point: 159 °C
Boiling Point: 404.2°Cat760mmHg
Flash Point: 198.2°C
Safety: Moderately toxic by subcutaneous route. Questionable carcinogen with experimental neoplastigenic data. Experimental teratogenic effects. When heated to decomposition it emits very toxic fumes of Cl− and NOx.
PSA: 27.96000
LogP: 4.82140
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Chemistry

Empirical Formula of p-Chloro-p'-dimethylaminoazobenzene (CAS NO.2491-76-1): C14H14ClN3
Molecular Weight: 259.7341 
Index of Refraction: 1.581
Density: 1.13 g/cm3
Flash Point: 198.2 °C
Enthalpy of Vaporization: 65.56 kJ/mol
Boiling Point: 404.2 °C at 760 mmHg
Vapour Pressure: 9.63E-07 mmHg at 25 °C
Melting point: 159 °C(lit.)
Structure of p-Chloro-p'-dimethylaminoazobenzene (CAS NO.2491-76-1):
                         
IUPAC Name: 4-(4-Chlorophenyl)diazenyl-N,N-dimethylaniline
Canonical SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)Cl
InChI: InChI=1S/C14H14ClN3/c1-18(2)14-9-7-13(8-10-14)17-16-12-5-3-11(15)4-6-12/h3-10H,1-2H3
InChIKey: WQWHNMIYCHFRJK-UHFFFAOYSA-N

Toxicity Data With Reference

1.    

orl-rat TDLo:6100 mg/kg/21W-C:NEO

     JEMEAV    Journal of Experimental Medicine. 87 (1948),139.
2.    

scu-mus LDLo:500 mg/kg

     OFAJAE    Okajimas Folia Anatomica Japonica. 36 (1960),195.

Safety Profile

Moderately toxic by subcutaneous route. Questionable carcinogen with experimental neoplastigenic data. Experimental teratogenic effects. When heated to decomposition p-Chloro-p'-dimethylaminoazobenzene (CAS NO.2491-76-1) emits very toxic fumes of Cl− and NOx.

Specification

 p-Chloro-p'-dimethylaminoazobenzene , its cas register number is 2491-76-1. It also can be called p-Chlorodimethylaminoazobenzene ; 4'-Chloro-4-dimethylaminoazobenzene ; Aniline, N,N-dimethyl-p-((p-chlorophenyl)azo)- ; and N,N-Dimethyl-p-((p-chlorophenyl)azo)aniline .