pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.19	IUPAC digitized pKa	0	-1	CC(C)(C)C(=O)C1C(=O)c2ccccc2C1=O	CC(C)(C)C(=O)[C-]1C(=O)c2ccccc2C1=O	mol11937	CC(C)(C)C(=O)C1C(=O)c2ccccc2C1=O