2H-1-Benzopyran-2-carboxylic acid, 3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl- 2H-1-Benzopyran-2-carboxylic acid, 3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-, (+-)- 3,4-Dihydro-6-hydroxy-2,5,7,8-tetramethyl-2H-1-benzopyran-2-carboxylic acid 53188-07-1 56305-04-5 6-Hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid 6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid BRN 5052542 EINECS 258-422-8 TROLOX C Trolox