Formula: C20H22O7 | Mol. Weight: 374.40 g/mol
IUPAC: (1R,5R,9R,10S,14R,15S,17S)-5-hydroxy-15-(hydroxymethyl)-2,9,17-trimethyl-6,13-dioxapentacyclo[12.3.1.05,17.07,16.010,15]octadeca-2,7(16)-diene-4,8,12-trione
CC1C2CC(=O)OC3C2(C4=C(C1=O)OC5(C4(C(C3)C(=CC5=O)C)C)O)CO