Formula: C20H28O7 | Mol. Weight: 380.40 g/mol
IUPAC: [(3aR,4R,5S,5aS,6S,8R,8aS,9R,9aS)-4,8,9-trihydroxy-5,8a-dimethyl-1-methylidene-2-oxo-4,5,5a,6,7,8,9,9a-octahydro-3aH-azuleno[6,5-b]furan-6-yl] (Z)-2-methylbut-2-enoate
CC=C(C)C(=O)OC1CC(C2(C1C(C(C3C(C2O)C(=C)C(=O)O3)O)C)C)O