IUPAC: (2S)-2-[(3S,4S)-3-carboxy-5,6,7-trihydroxy-1-oxo-3,4-dihydro-1H-2-benzopyran-4-yl]butanedioic acid

SMILES: OC(=O)C[C@@H]([C@@H]1[C@H](OC(=O)c2cc(O)c(O)c(O)c12)C(O)=O)C(O)=O