(4-(Hydroxymethyl)-1,3-dithiol-2-ylidene)phosphoramidic acid diethyl ester (Hydroxymethyl)vinylene(diethoxyphosphinyl)dithioimidocarbonate 63321-74-4 Aglycone 14b Phosphoramidic acid, (4-(hydroxymethyl)-1,3-dithiol-2-ylidene)-, diethyl ester