pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.0	IUPAC digitized pKa	0	-1	O=C1[C@H]2CCCC[C@H]2C(=O)N1O	O=C1[C@H]2CCCC[C@H]2C(=O)N1[O-]	mol10685	O=C1[C@H]2CCCC[C@H]2C(=O)N1O