InChI=1S/C22H22O12/c1-31-21-12(26)2-8(3-13(21)27)20-15(6-10-11(25)4-9(24)5-14(10)32-20)33-22-19(30)18(29)17(28)16(7-23)34-22/h2-6,16-19,22-23,28-30H,7H2,1H3,(H3-,24,25,26,27)/p+1/t16-,17-,18+,19-,22-/m1/s1