oxydi-2,1-ethanediyl dioleate 9-Octadecenoic acid (9Z)-, oxydi-2,1-ethanediyl ester 2-(2-[(9Z)-9-octadecenoyloxy]ethoxy)ethyl (9z)-9-octadecenoate Bis[(Z)-9-octadecenoic acid]oxydi(1,2-ethanediyl) ester 9-Octadecenoic acid (9Z)-, 1,1'-(oxydi-2,1-ethanediyl) ester Einecs 244-269-4