pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
10.23	OCHEM	1	0	Cc1ccccc1[NH+]=C1NCCN1	Cc1ccccc1N=C1NCCN1	mol20661	Cc1ccccc1N=C1NCCN1