2-Methyl-3-(acetylthio)propionyl chloride 64805-64-7 70354-87-9 EINECS 265-242-3 EINECS 274-580-0 Ethanethioic acid, S-(3-chloro-2-methyl-3-oxopropyl) ester S-(3-Chloro-2-methyl-3-oxopropyl) (1)ethanethioate S-(3-Chloro-2-methyl-3-oxopropyl) ethanethioate