[S-]c1ncnc2[nH]n[nH+]c12    mol8356    0_1
[S-]c1nc[nH+]c2[nH]nnc12    mol8356    0_2
Sc1ncnc2[nH]nnc12    mol8356    0_3
[S-]c1ncnc2[nH][nH+]nc12    mol8356    0_4
[S-]c1ncnc2[nH]nnc12    mol8356    -1_1
Sc1ncnc2[n-]nnc12    mol8356    -1_2
[S-]c1ncnc2[n-]nnc12    mol8356    -2_1