Formula: C21H10O13 | Mol. Weight: 470.30 g/mol
IUPAC: 3,4-dihydroxy-5-[(6,7,13,14-tetrahydroxy-3,10-dioxo-2,9-dioxatetracyclo[6.6.2.04,16.011,15]hexadeca-1(15),4(16),5,7,11,13-hexaen-5-yl)oxy]benzoic acid
C1=C(C=C(C(=C1O)O)OC2=C(C(=C3C4=C2C(=O)OC5=C4C(=CC(=C5O)O)C(=O)O3)O)O)C(=O)O