Bis[(9Z,12R)-12-hydroxy-9-octadecenoic acid]1,1,3,3-tetrabutyldistannoxane-1,3-diyl ester

[R-[R*,R*-(Z,Z)]]-1,1,3,3-tetrabutyl-1,3-bis[(12-hydroxy-1-oxooctadec-9-enyl)oxy]distannoxane

Bis[(9Z,12R)-12-hydroxy-9-octadecenoic acid]5,7-dibutyl-5,7-distanna-6-oxaundecane-5,7-diyl ester