22237-34-9 Azobenzene, 5,5'-dichloro-2,2'-dimethyl- BRN 0959800 Bis(5-chloro-2-methylphenyl)diazene Diazene, bis(5-chloro-2-methylphenyl)- Dichloro-5,5' dimethyl-2,2' azobenzene [French]