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