InChI=1S/C33H40O19/c1-10-21(38)24(41)28(45)32(48-10)47-9-18-23(40)26(43)29(46)33(52-18)51-16-7-14(37)19-13(36)6-15(11-2-4-12(35)5-3-11)49-30(19)20(16)31-27(44)25(42)22(39)17(8-34)50-31/h2-7,10,17-18,21-29,31-35,37-46H,8-9H2,1H3