Formula: C20H10O11 | Mol. Weight: 426.30 g/mol
IUPAC: 6,7,14-trihydroxy-13-(2,3,4-trihydroxyphenoxy)-2,9-dioxatetracyclo[6.6.2.04,16.011,15]hexadeca-1(15),4,6,8(16),11,13-hexaene-3,10-dione
C1=CC(=C(C(=C1O)O)O)OC2=C(C3=C4C(=C2)C(=O)OC5=C4C(=CC(=C5O)O)C(=O)O3)O