2,3-Dihydro-2-(((4-(phenylamino)phenyl)azo)methylene)-1,3,3-trimethyl-1H-indole 4-(((1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)methyl)azo)-N-phenylaniline 70198-16-2 Benzenamine, 4-(((1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)methyl)azo)-N-phenyl- EINECS 274-374-0