Try searching for...
SCFBio, IIT Delhi
Formula: C21H32O9 | Mol. Weight: 428.50 g/mol
IUPAC: 3,5a,9-trimethyl-6-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3a,4,5,6,7,9,9a,9b-octahydro-3H-benzo[g][1]benzofuran-2,8-dione
CC1C2CCC3(C(CC(=O)C(C3C2OC1=O)C)OC4C(C(C(C(O4)CO)O)O)O)C