CNc1ncc(Br)c(N)n1    mol7008    0_1
C[NH2+]c1ncc(Br)c(N)n1    mol7008    1_1
CNc1ncc(Br)c(N)[nH+]1    mol7008    1_2
CNc1nc(N)c(Br)c[nH+]1    mol7008    1_3
CNc1ncc(Br)c([NH3+])n1    mol7008    1_4