673-79-0 Diethyl 3,3'-thiobispropanoate Diethyl 3,3'-thiobispropionate Diethyl 3,3'-thiodipropionate Diethyl thiodipropionate EINECS 211-612-4 NSC 42914 Propanoic acid, 3,3'-thiobis-, diethyl ester Propionic acid, 3,3'-thiodi-, diethyl ester Propionic acid, 3,3'-thiodi-, diethyl ester (6CI,7CI,8CI)