1H-benz[e]indene-6-carboxylic acid, 2,3,4,5,5a,6,7,8,9,9a-decahydro-6,9a-dimethyl-3-(2-methylpropylidene)-, (3E,5aR,6R,9aS)- InChI=1/C20H30O2/c1-13(2)12-14-6-8-16-15(14)7-9-17-19(16,3)10-5-11-20(17,4)18(21)22/h12-13,17H,5-11H2,1-4H3,(H,21,22)/b14-12+/t17-,19-,20-/m1/s rel-(3E,5aR,6R,9aS)-6,9a-dimethyl-3-(2-methylpropylidene)-2,3,4,5,5a,6,7,8,9,9a-decahydro-1H-cyclopenta[a]naphthalene-6-carboxylic acid