Nc1ncnc2scnc12    mol4966    0_1
Nc1nc[nH+]c2scnc12    mol4966    1_1
Nc1[nH+]cnc2scnc12    mol4966    1_2
[NH3+]c1ncnc2scnc12    mol4966    1_3
Nc1ncnc2sc[nH+]c12    mol4966    1_4