pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.9	IUPAC digitized pKa	0	-1	Cn1ccnc1S	Cn1ccnc1[S-]	mol6679	Cn1ccnc1S
-2.0	IUPAC digitized pKa	1	0	Cn1cc[nH+]c1S	Cn1ccnc1S	mol6679	Cn1ccnc1S