Synonyms: Poly[oxy(methyl-1,2-ethanediyl)],a,a',a''-1,2,3-propanetriyltris[w-[(3-carboxy-1-oxo-2-propenyl)oxy]-, (all-Z)-;Poly[oxy(methyl-1,2-ethanediyl)], a,a',a''-1,2,3-propanetriyltris[w-[[(2E)-3-carboxy-1-oxo-2-propenyl]oxy]- (9CI); a,a',a''-1,2,3-Propanetriyltris(polypropylene glycol) maleate (1:3)