2,3-Quinoxalinediamine, 6-chloro-N,N'-diphenyl- 2,6-Dianilino-6-chloroquinoxaline 6-Chloro-2,3-dianilinoquinoxaline 6-Chloro-N,N'-diphenylquinoxaline-2,3-diamine 68413-85-4 EINECS 270-256-8