pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.52	Datawarrior	0	-1	CC/C=C/CC(=O)O	CC/C=C/CC(=O)[O-]	mol12437	CC/C=C/CC(=O)O
4.72	OCHEM	0	-1	CC/C=C/CC(=O)O	CC/C=C/CC(=O)[O-]	mol12437	CC/C=C/CC(=O)O