Nc1nc2ncnc(N)c2nc1N mol4844 0_1 Nc1nc2ncnc(N)c2[nH+]c1N mol4844 1_1 Nc1nc2[nH+]cnc(N)c2nc1N mol4844 1_2 Nc1nc2nc[nH+]c(N)c2nc1N mol4844 1_3 Nc1nc2c(N)ncnc2[nH+]c1N mol4844 1_4 Nc1nc2c(N)ncnc2nc1[NH3+] mol4844 1_5 Nc1nc2ncnc([NH3+])c2nc1N mol4844 1_6 Nc1nc2ncnc(N)c2nc1[NH3+] mol4844 1_7