1,2-Dihydro-1,4,4-trimethyl-7-(1,2-dimethylheptyl)-9-hydroxy-4H-thieno(2,3-c)(1)benzopyran 1,4-Dihydro-7-(1,2-dimethylheptyl)-1,4,4-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)-1,4,4-trimethyl- 56291-41-9 BRN 1326548