Try searching for...
SCFBio, IIT Delhi
Formula: C21H18O7 | Mol. Weight: 382.40 g/mol
IUPAC: [(1R,4S,5S,6R)-5-benzoyloxy-4-hydroxy-8-oxo-2-oxabicyclo[2.2.2]octan-6-yl] benzoate
C1C2C(C(C(C1=O)(CO2)O)OC(=O)C3=CC=CC=C3)OC(=O)C4=CC=CC=C4