Formula: C32H18O12 | Mol. Weight: 594.50 g/mol
IUPAC: 3-[(2R)-5-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-5',6'-dihydroxy-3-oxospiro[furan-2,1'-indene]-2'-yl]-8,9-dihydroxypyrano[4,3-c]isochromene-1,6-dione
C1=CC(=C(C=C1C=CC2=CC(=O)C3(O2)C(=CC4=CC(=C(C=C34)O)O)C5=CC6=C(C7=CC(=C(C=C7C(=O)O6)O)O)C(=O)O5)O)O