InChI=1/C13H16N2O6/c1-13(2,7-12(18)19)6-11(17)14-9-5-8(15(20)21)3-4-10(9)16/h3-5,16H,6-7H2,1-2H3,(H,14,17)(H,18,19)/p-1/fC13H15N2O6/h14H/q-1 84AF63BA41283C54