Cn1cc2[nH]c([S-])nc2[nH+]c1=O    mol9889    0_1
Cn1cc2[nH]c(S)nc2nc1=O    mol9889    0_2
Cn1cc2[nH]c([S-])nc2nc1=O    mol9889    -1_1
Cn1cc2[n-]c(S)nc2nc1=O    mol9889    -1_2