Formula: C21H28O7 | Mol. Weight: 392.40 g/mol
IUPAC: (1S,2S,6S,7S,9R,13R,14S,15R,17S)-14,15-dihydroxy-4-methoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.02,7.013,17]heptadec-4-ene-3,11,16-trione
CC1C=C(C(=O)C2(C1CC3C4(C2C(=O)C(C(C4CC(=O)O3)(C)O)O)C)C)OC