Formula: C25H22O6 | Mol. Weight: 418.40 g/mol
IUPAC: 7,21-dihydroxy-17,17-dimethyl-14-(3-methylbut-2-enyl)-10,12,16-trioxapentacyclo[11.8.0.03,11.04,9.015,20]henicosa-1(13),3(11),4(9),5,7,14,18,20-octaen-2-one
CC(=CCC1=C2C(=C(C3=C1OC4=C(C3=O)C5=C(O4)C=C(C=C5)O)O)C=CC(O2)(C)C)C