S-330

1,3,4,6-Tetrachloro-3a,6a-diphenyloctahydroimidazo[4,5-d]imidazole-2,5-diimine

1,3,4,6-Tetrachloro-3a,6a-diphenyl-2,3,3a,4,5,6a-hexahydroimidazo[4,5-d]imidazole-2,5-diimine