pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.0	IUPAC digitized pKa	1	0	Cc1ccn(C)c(=O)[nH+]1	Cc1ccn(C)c(=O)n1	mol4153	Cc1ccn(C)c(=O)n1