Synonyms: Poly(oxy-?1,?2-?ethanediyl)?, a-?[4-?[[(2R)?-?3,?4-?dihydro-?2,?5,?7,?8-?tetramethyl-?2-?[(4R,?8R)?-?4,?8,?12-?trimethyltridecyl]?-?2H-?1-?benzopyran-?6-?yl]?oxy]?-?1,?4-?dioxobutyl]?;Poly(oxy-1,2-ethanediyl), -[4-[[(2R)-3,4-dihydro-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-2H-1-benzopyran-6-yl]oxy]-1,4-dioxobutyl]--hydroxy-