pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.28	IUPAC digitized pKa	1	0	CSc1[nH+]c2ccncc2n1C,CSc1nc2cc[nH+]cc2n1C	CSc1nc2ccncc2n1C	mol7989	CSc1nc2ccncc2n1C