5120-23-0 AC 47271 American cyanamid CL-47271 CL-47271 Dimethyl 1,3-dithiolan-2-ylidenephosphoramidate ENT 27,168 Imidocarbonic acid, (dimethoxyphosphinyl)dithio-, cyclic ethylene ester Phosphoramidic acid, 1,3-dithiolan-2-ylidene-, dimethyl ester