InChI=1S/C22H22O12/c1-31-15-3-8(2-12(26)18(15)27)13-6-11(25)17-10(24)4-9(5-14(17)33-13)32-22-21(30)20(29)19(28)16(7-23)34-22/h2-6,16,19-24,26-30H,7H2,1H3/t16-,19+,20-,21+,22+/m0/s1