InChI=1/C33H40O18/c1-44-18-10-15(4-7-17(18)35)5-8-23(36)50-31-29(42)27(40)22(14-47-32-30(43)28(41)26(39)21(13-34)48-32)49-33(31)51-24(37)9-6-16-11-19(45-2)25(38)20(12-16)46-3/h4-12,21-22,26-35,38-43H,13-14H2,1-3H3/b8-5+,9-6+