CAS: 568-80-9 Molecular Formula: C12H6O8 Molecular Weight (g/mol): 278.17 Synonym: 3,8,9,10-Tetrahydroxypyrano[3,2-c][2]benzopyran-2,6-dione,NSC 107022 IUPAC Name: 3,8,9,10-tetrahydroxypyrano[3,2-c]isochromene-2,6-dione SMILES: OC1=CC2=C(OC1=O)c3c(O)c(O)c(O)cc3C(=O)O2