pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.8	OCHEM	0	-1	CCOc1ccc(NC(C)=O)cc1	CCOc1ccc([N-]C(C)=O)cc1	mol2203	CCOc1ccc(NC(C)=O)cc1
2.2	IUPAC digitized pKa	1	0	CCOc1ccc(NC(C)=[OH+])cc1	CCOc1ccc(NC(C)=O)cc1	mol2203	CCOc1ccc(NC(C)=O)cc1