pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.64	AttenGpKa training set	0	-1	C/C(CCC(=O)O)=N\O	C/C(CCC(=O)[O-])=N\O	mol22252	C/C(CCC(=O)O)=N\O