pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
12.4	IUPAC digitized pKa	1	0	Cn1ccc(=[NH2+])c2ccccc21	Cn1ccc(=N)c2ccccc21	mol4403	Cn1ccc(=N)c2ccccc21