pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.1	IUPAC digitized pKa	2	1	CNc1ccc2cc3ccc([NH2+]C)cc3[o+]c2c1	CNc1ccc2cc3ccc(NC)cc3[o+]c2c1	mol5745	CNc1ccc2cc3ccc(NC)cc3[o+]c2c1