Nc1nc(-c2n[nH]c(N)n2)n[nH]1    mol7659    0_1
Nc1nc(-c2n[nH]c(N)[nH+]2)n[nH]1    mol7659    1_1
Nc1nc(-c2nc(N)[nH][nH+]2)n[nH]1    mol7659    1_2
Nc1nc(-c2n[nH]c([NH3+])n2)n[nH]1    mol7659    1_3