InChI=1S/C33H32O18/c34-14-4-1-11(7-16(14)36)8-20(29(42)43)49-32(48)24-22(21(23(24)30(44)45)12-2-5-15(35)17(37)9-12)13-3-6-19(18(38)10-13)50-33-27(41)25(39)26(40)28(51-33)31(46)47/h1-7,9-10,20-28,33-41H,8H2,(H,42,43)(H,44,45)(H,46,47)