pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.56	IUPAC digitized pKa	1	0	C[NH2+]c1ccc(C)cc1C	CNc1ccc(C)cc1C	mol1730	CNc1ccc(C)cc1C