(Dimethylstannylene)bis(thioethylene) dimethyl diadipate 70969-67-4 Dimethyltinbis(2-mercaptoethyl 5-carbomethoxypentanoate) EINECS 275-071-6 Hexanedioic acid, (dimethylstannylene)bis(thio-2,1-ethanediyl) dimethyl ester