1,2-Dihydro-7-(1,2-dimethylheptyl)-2,4,4-trimethyl-9-hydroxy-4H-thieno(2,3-c)(1)benzopyran 1,4-Dihydro-7-(1,2-dimethylheptyl)-2,4,4-trimethyl-2H-thieno(2,3-c)(1)benzopyran-9-ol 2H-Thieno(2,3-c)(1)benzopyran-9-ol, 1,4-dihydro-7-(1,2-dimethylheptyl)-2,4,4-trimethyl- 56291-44-2 BRN 1326482