941-38-8 AC 52107 American cyanamid CL-52107 CL 52107 Dimethyl 1,3-dithian-2-ylidenephosphoramidate ENT 27,172 Imidocarbonic acid, (dimethoxyphosphinyl)dithio-, cyclic trimethylene ester Phosphoramidic acid, 1,3-dithian-2-ylidene-, dimethyl ester