pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.23	Datawarrior	0	-1	C[C@@H]1CCCC(=O)C1=O	C[C-]1CCCC(=O)C1=O,C[C@@H]1CC[CH-]C(=O)C1=O	mol13552	CC1CCCC(=O)C1=O