pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
12.3	IUPAC digitized pKa	1	0	Cn1cc(Cl)ccc1=[NH2+]	Cn1cc(Cl)ccc1=N	mol6394	Cn1cc(Cl)ccc1=N