60494-19-1 Di-n-octylzinn-dimonomethylmaleinat [German] EINECS 262-265-0 Methyl (Z,Z)-8,8-dioctyl-3,6,10-trioxo-2,7,9-trioxa-8-stannatrideca-4,11-dien-13-oate Stannane, bis(methoxymaleoyloxy)dioctyl-