93904-62-2 (4aalpha,7aalpha,8aalpha)-3,4,4a,7,8,8a-hexahydro-3,3,6,7-tetramethyl-1H-2-benzopyran 93904-61-1 (4aalpha,7beta,8abeta)-3,4,4a,7,8,8a-hexahydro-3,3,6,7-tetramethyl-1H-2-benzopyran 93904-60-0 (4aalpha,7beta,8aalpha)-3,4,4a,7,8,8a-hexahydro-3,3,6,7-tetramethyl-1H-2-benzopyran 94265-96-0 (4aalpha,7alpha,8abeta)-3,4,4a,7,8,8a-hexahydro-3,3,6,7-tetramethyl-1H-2-benzopyran