Dibutylbis((3-carboxyacryloxyl)oxy)stannane, dipropyl ester Einecs 239-978-0 Stannane, dibutylbis((3-carboxyacryloyl)oxy)-, dipropyl ester, (Z,Z)- (Z,Z)-dibutylbis[(3-propoxycarbonylacryloyl)oxy]stannane Bis[(Z)-4-oxo-4-propoxy-2-butenoic acid]dibutyltin(IV) salt 2-Butenoic acid, 4,4'-((dibutylstannylene)bis(oxy))bis(4-oxo-, 1,1'-dipropyl ester, (2Z,2'Z)- 2-Butenoic acid, 4,4'-((dibutylstannylene)bis(oxy))bis(4-oxo-, dipropyl ester, (2Z,2'Z)-