InChI=1S/C33H32O18/c34-14-4-2-12(9-16(14)36)21-22(13-3-5-15(35)17(37)10-13)24(23(21)30(44)45)32(48)49-20(29(42)43)8-11-1-6-19(18(38)7-11)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)