Formula: C20H26O5 | Mol. Weight: 346.40 g/mol
IUPAC: [(3aR,4S,5aR,6R,9aS,9bR)-6-hydroxy-5a-methyl-3,9-dimethylidene-2-oxo-3a,4,5,6,7,8,9a,9b-octahydrobenzo[g][1]benzofuran-4-yl] (E)-2-methylbut-2-enoate
CC=C(C)C(=O)OC1CC2(C(CCC(=C)C2C3C1C(=C)C(=O)O3)O)C