Formula: C27H20O13 | Mol. Weight: 552.40 g/mol
IUPAC: [5,7-dihydroxy-2-(2,3,4,6-tetrahydroxy-5-oxobenzo[7]annulen-8-yl)-3,4-dihydro-2H-chromen-3-yl] 3,4,5-trihydroxybenzoate
C1C(C(OC2=CC(=CC(=C21)O)O)C3=CC4=CC(=C(C(=C4C(=O)C(=C3)O)O)O)O)OC(=O)C5=CC(=C(C(=C5)O)O)O