63907-30-2 American cyanamid AC 47,938 American cyanamid EL-47938 Diethyl (4,5-dimethyl-1,3-dithiolan-2-ylidene)phosphoramidate E.I. 47938 ENT 27,091 Imidocarbonic acid, (diethoxyphosphinyl)dithio-, cyclic 1,2-dimethylethylene ester Imidocarbonic acid, phosphonodithio-, P,P-diethyl cyclic 1,2-dimethylethylene ester Phosphoramidic acid, (4,5-dimethyl-1,3-dithiolan-2-ylidene)-, diethyl ester