pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.49	IUPAC digitized pKa	1	0	c1ccc(NC2=[NH+]CCCS2)cc1	c1ccc(NC2=NCCCS2)cc1	mol7549	c1ccc(NC2=NCCCS2)cc1