Try searching for...
SCFBio, IIT Delhi
Formula: C16H12O5 | Mol. Weight: 284.26 g/mol
IUPAC: 7-hydroxy-3-(2-hydroxy-4-methoxyphenyl)chromen-2-one
COC1=CC(=C(C=C1)C2=CC3=C(C=C(C=C3)O)OC2=O)O