diisooctyl 4,4'-[(1,1,3,3-tetrabutyldistannoxane-1,3-diyl)bis(oxy)]bis[4-oxobut-2-en-1-oate]

4,4'-[(1,1,3,3-Tetrabutyl-1,3-distanna-2-oxapropane-1,3-diyl)bis(oxy)]bis[4-oxo-2-butenoic acid 6-methylheptyl] ester