InChI=1S/C34H34O18/c35-11-23-25(41)28(44)31(52-33-29(45)27(43)26(42)24(51-33)12-47-32(46)13-1-4-15(36)5-2-13)34(50-23)49-22-10-17-19(39)8-16(37)9-21(17)48-30(22)14-3-6-18(38)20(40)7-14/h1-10,23-29,31,33-35,41-45H,11-12H2,(H4-,36,37,38,39,40,46)/p+1