Formula: C22H28O7 | Mol. Weight: 404.50 g/mol
IUPAC: [(1S,2S,5R,6R,7S,8S,10S,11R,13R)-10-hydroxy-12,12-dimethyl-9,16-dioxospiro[14-oxapentacyclo[11.2.2.15,8.01,11.02,8]octadecane-6,2'-oxirane]-7-yl] acetate
CC(=O)OC1C23CC(C14CO4)CCC2C56COC(CC5=O)C(C6C(C3=O)O)(C)C