InChI=1S/C33H40O18/c1-33(41,11-18(35)36)12-19(37)49-25-17(13-34)48-32(23(40)22(25)39)51-28-21(38)20-26(44-4)29(45-5)31(47-7)30(46-6)27(20)50-24(28)14-8-9-15(42-2)16(10-14)43-3/h8-10,17,22-23,25,32,34,39-41H,11-13H2,1-7H3,(H,35,36)