pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.5	Datawarrior	0	-1	Cc1ccccc1/C=C/C(=O)O	Cc1ccccc1/C=C/C(=O)[O-]	mol1172	Cc1ccccc1/C=C/C(=O)O
4.49	Hunt	0	-1	Cc1ccccc1/C=C/C(=O)O	Cc1ccccc1/C=C/C(=O)[O-]	mol1172	Cc1ccccc1/C=C/C(=O)O