InChI=1S/C26H26O12/c1-36-21-11-15(3-7-17(21)28)4-8-22(32)37-24-19(30)12-26(25(34)35,13-20(24)31)38-23(33)9-5-14-2-6-16(27)18(29)10-14/h2-11,19-20,24,27-31H,12-13H2,1H3,(H,34,35)/b8-4+,9-5+/t19?,20?,24?,26-