Formula: C30H20O12 | Mol. Weight: 572.50 g/mol
IUPAC: (1S,13R,21S)-5-(3,4-dihydroxyphenyl)-6,9,17,19,21-pentahydroxy-13-(4-hydroxyphenyl)-4,12,14-trioxapentacyclo[11.7.1.02,11.03,8.015,20]henicosa-2(11),3(8),5,9,15,17,19-heptaen-7-one
C1=CC(=CC=C1C23C(C(C4=C(C=C(C=C4O2)O)O)C5=C(O3)C=C(C6=C5OC(=C(C6=O)O)C7=CC(=C(C=C7)O)O)O)O)O