InChI=1/C12H16N4O4/c1-20-12-9-7(14-4-15-12)5(2-13-9)8-11(19)10(18)6(3-17)16-8/h2,4,6,8,10-11,13,16-19H,3H2,1H3/t6-,8+,10+,11-/m1/s1 74D2B68925593231