Formula: C21H28O7 | Mol. Weight: 392.40 g/mol
IUPAC: (1S,2R,7R,9R,13S,14R,15S,16S,17S)-16-hydroxy-4,15-dimethoxy-2,14,17-trimethyl-10-oxatetracyclo[7.7.1.02,7.013,17]heptadec-4-ene-3,6,11-trione
CC1C2CC(=O)OC3C2(C(C(C1OC)O)C4(C(C3)C(=O)C=C(C4=O)OC)C)C