pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.2	Organic Oxygen Acids and Nitrogen Bases	0	-1	O=C(O)COc1cccc2ccccc12	O=C([O-])COc1cccc2ccccc12	mol21769	O=C(O)COc1cccc2ccccc12