pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.7	Caine	0	-1	CCc1cc(C)cc(CC)c1C1C(=O)CCCC1=O	CCc1cc(C)cc(CC)c1[C-]1C(=O)CCCC1=O,CCc1cc(C)cc(CC)c1C1C(=O)[CH-]CCC1=O	mol2724	CCc1cc(C)cc(CC)c1C1C(=O)CCCC1=O