2-(2-hydroxyethyl)-2,5,7,8-tetramethylchroman-6-ol 2H-1-benzopyran-2-ethanol, 3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl- InChI=1/C15H22O3/c1-9-10(2)14-12(11(3)13(9)17)5-6-15(4,18-14)7-8-16/h16-17H,5-8H2,1-4H