InChI=1S/C25H26O12/c26-15-5-1-13(9-17(15)28)3-7-21(31)36-20-12-25(35,24(33)34)11-19(30)23(20)37-22(32)8-4-14-2-6-16(27)18(29)10-14/h1-3,5-7,9-10,19-20,23,26-30,35H,4,8,11-12H2,(H,33,34)/b7-3+