63870-33-7 9H-Carbazol-3-amine, N,N'-(2,3,5,6-tetrachloro-2,5-cyclohexadiene-1,4-diylidene)bis(9-ethyl- EINECS 264-526-4 N,N'-(2,3,5,6-Tetrachloro-2,5-cyclohexadiene-1,4-diylidene)bis(9-ethyl-9H-carbazol-3-amine)