107811-11-0 Butanoic acid, 4-oxo-4-(1,3,4-thiadiazol-2-ylamino)-, 2-chloroethyl ester N-(1,3,4-Thiadiazol-2-yl)succinamic acid 2-chloroethyl ester Succinamic acid, N-(1,3,4-thiadiazol-2-yl)-, 2-chloroethyl ester