1-phenyl-5-(1-phenyltetrazol-5-yl)tetrazole

N,2-diphenyl-5-phenyliminoimidazol-4-amine

N,N'-diphenylethanedithioamide

2,5-Di-p-toluyl-3,4-diphenylimino-1,2,5-thiadiazolidin-S-oxid

2,5-Di-p-dimethylaminophenyl-3,4-diphenylimino-1,2,5-thiadiazolidin-S-oxid