Formula: C30H22O10 | Mol. Weight: 542.50 g/mol
IUPAC: (2S,2'R,3'S,8'S)-3',4,5',6-tetrahydroxy-2',8'-bis(4-hydroxyphenyl)spiro[1-benzofuran-2,9'-2,3,4,8-tetrahydrofuro[2,3-h]chromene]-3-one
C1C(C(OC2=C1C(=CC3=C2C4(C(O3)C5=CC=C(C=C5)O)C(=O)C6=C(C=C(C=C6O4)O)O)O)C7=CC=C(C=C7)O)O