pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.5	IUPAC digitized pKa	1	0	[NH3+]c1ccccc1Sc1ccccc1	Nc1ccccc1Sc1ccccc1	mol1716	Nc1ccccc1Sc1ccccc1