InChI=1/C26H28O16/c27-6-17-20(35)21(36)24(42-25-22(37)19(34)14(32)7-38-25)26(41-17)40-16-5-10-11(29)3-9(28)4-15(10)39-23(16)8-1-12(30)18(33)13(31)2-8/h1-5,14,17,19-22,24-27,32,34-37H,6-7H2,(H4-,28,29,30,31,33)/p+1