NSC291025 Propanoic acid, 3,3'-thiobis(2-chloro-, dimethyl ester Propanoic acid, 3-chloro-2-[(2-chloro-3-methoxy-3-oxopropyl)thio]-, methyl ester, mixt. with dimethyl 2,2'-thiobis[3-chloropropanoate] and dimethyl 3,3'-thiobis-[2-chloropropanoate]