CCN(CC)c1nc(N)nc(N(CC)CC)n1    mol4259    0_1
CCN(CC)c1nc(N)nc([NH+](CC)CC)n1    mol4259    1_1
CCN(CC)c1nc([NH3+])nc(N(CC)CC)n1    mol4259    1_2
CCN(CC)c1nc(N)[nH+]c(N(CC)CC)n1    mol4259    1_3
CCN(CC)c1nc(N)nc(N(CC)CC)[nH+]1    mol4259    1_4