pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.2	Datawarrior	0	-1	O=C1CC(=O)CC2(CCCCC2)C1	O=C1[CH-]C(=O)CC2(CCCCC2)C1	mol13721	O=C1CC(=O)CC2(CCCCC2)C1
5.1999998	OCHEM	0	-1	O=C1CC(=O)CC2(CCCCC2)C1	O=C1[CH-]C(=O)CC2(CCCCC2)C1	mol13721	O=C1CC(=O)CC2(CCCCC2)C1