Try searching for...
SCFBio, IIT Delhi
Formula: C13H14O11 | Mol. Weight: 346.24 g/mol
IUPAC: (2S,3S,4S,5R,6S)-6-(4-carboxy-2,6-dihydroxyphenoxy)-3,4,5-trihydroxyoxane-2-carboxylic acid
C1=C(C=C(C(=C1O)OC2C(C(C(C(O2)C(=O)O)O)O)O)O)C(=O)O