InChI=1S/C28H32O16/c1-40-13-4-9(2-3-10(13)31)12-5-11(32)18-14(41-12)6-15(43-28-26(39)24(37)21(34)17(8-30)44-28)19(22(18)35)27-25(38)23(36)20(33)16(7-29)42-27/h2-6,16-17,20-21,23-31,33-39H,7-8H2,1H3