Try searching for...
SCFBio, IIT Delhi
Formula: C15H12O5 | Mol. Weight: 272.25 g/mol
IUPAC: (3S)-7-hydroxy-3-[(R)-hydroxy-(4-hydroxyphenyl)methyl]-3H-2-benzofuran-1-one
C1=CC2=C(C(=C1)O)C(=O)OC2C(C3=CC=C(C=C3)O)O