Formula: C24H20O7 | Mol. Weight: 420.40 g/mol
IUPAC: 10-acetyl-21-hydroxy-6,6,17,17-tetramethyl-7,12,18-trioxapentacyclo[11.8.0.03,11.05,9.014,19]henicosa-1(13),3,5(9),10,14(19),15,20-heptaene-2,8-dione
CC(=O)C1=C2C(=CC3=C1C(=O)OC3(C)C)C(=O)C4=C(O2)C5=C(C=C4O)OC(C=C5)(C)C