pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.92	IUPAC digitized pKa	1	0	C[C@@H]1CC(=O)N[NH+]1C	C[C@@H]1CC(=O)NN1C	mol6923	CC1CC(=O)NN1C