5-methylimino-4-phenyl-3-phenylimino-1,2,4-thiadiazolidine

4-methyl-3-N,5-N-diphenyl-1,2,4-dithiazolidine-3,5-diimine

4-methyl-2-phenyl-5-phenylimino-1,2,4-thiadiazolidin-3-one

N-methyl-N'-phenylmethanediimine