1H-Anthra(1,2-d)imidazole-6,11-dione, 2,2'-(2,5-dichloro-1,4-phenylene)bis- 2,2'-(2,5-Dichloro-1,4-phenylene)bis(1H-anthra(1,2-d)imidazole-6,11-dione) 40783-05-9 EINECS 255-078-0