Formula: C30H22O12 | Mol. Weight: 574.50 g/mol
IUPAC: (2R,2'R,3S,3'R)-2,2'-bis(3,4-dihydroxyphenyl)-3',4,5',6-tetrahydroxyspiro[2H-1-benzofuran-3,9'-3,4-dihydro-2H-furo[2,3-h]chromene]-8'-one
C1C(C(OC2=C1C(=CC3=C2C4(C(OC5=CC(=CC(=C54)O)O)C6=CC(=C(C=C6)O)O)C(=O)O3)O)C7=CC(=C(C=C7)O)O)O