3-Methylpyridine-1-oxide-4-azo-p-dimethylaniline 3-Picoline, 4-((p-(dimethylamino)phenyl)azo)-, 1-oxide 31932-35-1 Aniline, N,N-dimethyl-4-(4'-(3'-methylpyridyl-1'-oxide)azo)- N,N-Dimethyl-4-(4'-(3'-methylpyridyl-1'-oxide)azo)aniline NSC 170604