Formula: C21H10O13 | Mol. Weight: 470.30 g/mol
IUPAC: 2,3,4-trihydroxy-5-[(7,13,14-trihydroxy-3,10-dioxo-2,9-dioxatetracyclo[6.6.2.04,16.011,15]hexadeca-1(15),4,6,8(16),11,13-hexaen-6-yl)oxy]benzoic acid
C1=C2C3=C(C(=C1O)O)OC(=O)C4=CC(=C(C(=C43)OC2=O)O)OC5=C(C(=C(C(=C5)C(=O)O)O)O)O