InChI=1S/C29H32O17/c1-10(31)41-9-17-20(36)22(38)24(40)28(44-17)46-27-23(39)19(35)16(8-30)43-29(27)45-26-21(37)18-14(34)6-13(33)7-15(18)42-25(26)11-2-4-12(32)5-3-11/h2-7,16-17,19-20,22-24,27-30,32-36,38-40H,8-9H2,1H3