2-Picoline, 4-((4-(dimethylamino)-o-tolyl)azo)-, 1-oxide 4-((4-(Dimethylamino)-o-tolyl)azo)-2-picoline 1-oxide 7347-48-0 Benzenamine, N,N,3-trimethyl-4-((2-methyl-4-pyridinyl)azo)-, N-oxide (9CI) N,N-Dimethyl-3-methyl-4-(4'-(2'-methylpyridyl-1'-oxide)azo)aniline N,N-Dimethyl-4-(4'-(2'-methylpyridyl-1-oxide)azo)-o-toluidine NSC 170630