InChI=1/C12H16N4O4/c1-16-2-5(7-9(16)12(20)14-4-13-7)8-11(19)10(18)6(3-17)15-8/h2,4,6,8,10-11,15,17-19H,3H2,1H3,(H,13,14,20)/p+1/t6-,8+,10+,11+/m1/s1/fC12H17N4O4/h14-15H/q+1 64CB25E007EE4ACF