InChI=1/C11H16N4O4/c16-4-8(18)7(17)3-12-1-6-2-13-10-9(6)14-5-15-11(10)19/h2,5,7-8,12-13,16-18H,1,3-4H2,(H,14,15,19)/t7-,8+/m0/s1/f/h15H A13791F51F9E2166