Cn1c(S)nc2cnccc21    mol7980    0_1
Cn1c([S-])nc2c[nH+]ccc21    mol7980    0_2
Cn1c(S)[nH+]c2cnccc21    mol7980    1_1
Cn1c(S)nc2c[nH+]ccc21    mol7980    1_2
Cn1c([S-])nc2cnccc21    mol7980    -1_1