56354-06-4 6H-Dibenzo(b,d)pyran-9-carboxylic acid, 6a,7,8,10a-tetrahydro-1-hydroxy-6,6-dimethyl-3-pentyl-, (6aR,10aR)- 6H-Dibenzo(b,d)pyran-9-carboxylic acid, 6a,7,8,10a-tetrahydro-1-hydroxy-6,6-dimethyl-3-pentyl-, (6aR-trans)-