Nomenclature
CAS number: 156-10-5
4-Nitroso-
N-phenylbenzenamine; 4-nitroso-
N-phenylaniline;
p-phenylaminonitrosobenzene;
N-phenyl-
p-nitrosoaniline.
C
12H
10N
2O; mol wt 198.22.
C 72.71%, H 5.08%, N 14.13%, O 8.07%.
Description and references
Review of toxicology and human exposure:
Toxicological Profile for N-Nitrosodiphenylamine (PB93-182509, 1993) 114 pp.
Properties
Green plates with bluish luster (from benzene)
or steel-blue prisms or plates (from ether + water). mp 144-145°. Slightly sol in water
or petr ether; freely sol in alcohol, ether, chloroform, benzene.
Dissolves in H2SO4 with a red color, which
suddenly changes to violet on warming.Note
This substance was formerly anticipated
to be a carcinogen: Fifth Annual Report on
Carcinogens (NTP 89-239, 1989) p 212; delisted for insufficient
evidence of carcinogenicity: Sixth Annual
Report on Carcinogens (PB92-120666, 1991) p 13.Use
Has been used as retardant in vulcanizing rubber.