InChI=1S/C33H40O16/c1-44-22-11-16(5-9-20(22)37)3-7-18(35)13-19(36)8-4-17-6-10-21(23(12-17)45-2)47-33-31(43)29(41)27(39)25(49-33)15-46-32-30(42)28(40)26(38)24(14-34)48-32/h3-13,24-35,37-43H,14-15H2,1-2H3