InChI=1S/C33H40O20/c1-9-19(38)21(40)25(44)32(48-9)52-29-23(42)20(39)16(8-34)50-28(29)18-13(37)7-15(51-33-26(45)22(41)24(43)30(53-33)31(46)47)17-12(36)6-14(49-27(17)18)10-2-4-11(35)5-3-10/h2-5,7,9,14,16,19-26,28-30,32-35,37-45H,6,8H2,1H3,(H,46,47)