InChI=1S/C27H32O17/c28-6-14-16(33)17(34)19(36)24(41-14)15-13(42-27-21(38)18(35)20(37)25(44-27)26(39)40)5-10(30)8-4-12(32)22(43-23(8)15)7-1-2-9(29)11(31)3-7/h1-3,5,12,14,16-22,24-25,27-38H,4,6H2,(H,39,40)