pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.36	OCHEM	1	0	c1ccn(-c2[nH]cc[nH+]2)c1	c1ccn(-c2ncc[nH]2)c1	mol20650	c1ccn(-c2ncc[nH]2)c1