pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.3	IUPAC digitized pKa	1	0	CC1(C)CC(=O)CC(C)(C)[NH+]1O	CC1(C)CC(=O)CC(C)(C)N1O	mol6343	CC1(C)CC(=O)CC(C)(C)N1O