InChI=1S/C33H42O17/c1-14(12-34)8-23(38)47-20-10-19(11-21(25(20)15(2)36)48-24(39)9-17-4-6-18(37)7-5-17)46-33-31(29(43)27(41)22(13-35)49-33)50-32-30(44)28(42)26(40)16(3)45-32/h4-7,10-11,14,16,22,26-35,37,40-44H,8-9,12-13H2,1-3H3