6-phenyl-4-sulfanylidene-1H-1,3,5-triazin-2-one

N'-tert-butylbenzenecarboximidamide

Imidodicarbonic acid, 1,3-diphenyl ester

phenyl (1-tert-butylamino-1-phenylmethylidene)carbamate

碳酸二苯酯