InChI=1/C11H14N4O4/c16-2-6-9(17)10(18)7(15-6)5-1-4-8(14-5)11(19)13-3-12-4/h1,3,6-7,9-10,14-18H,2H2,(H,12,13,19)/p-1/t6-,7+,9+,10-/m0/s1/fC11H13N4O4/q-1 CFFB8C2BF51634BB