InChI=1/C18H20F6N2O6/c1-3-31-13(27)11-10(9-6-5-7-25-8-9)12(14(28)32-4-2)16(30,18(22,23)24)26-15(11,29)17(19,20)21/h5-8,10-12,26,29-30H,3-4H2,1-2H3/t10?,11-,12+,15-,16+ 762465F85449ACBC