Formula: C28H32O6 | Mol. Weight: 464.50 g/mol
IUPAC: (1S,2S,4R,6S,11R,12S,14R,15R,21S)-14-hydroxy-3',4',11,17,21-pentamethylspiro[5-oxahexacyclo[12.6.1.02,12.04,6.06,11.018,21]henicosa-8,17-diene-15,5'-furan]-2',10,16-trione
CC1=C(C2(C(=O)C(=C3CCC4C3(C2(CC5C4CC6C7(C5(C(=O)C=CC7)C)O6)O)C)C)OC1=O)C