InChI=1S/C26H28O17/c27-6-13-15(31)19(35)26(41-13)42-22-16(32)14-11(30)4-8(39-25-20(36)17(33)18(34)23(43-25)24(37)38)5-12(14)40-21(22)7-1-2-9(28)10(29)3-7/h1-5,13,15,17-23,25-31,33-36H,6H2,(H,37,38)