pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.7	Datawarrior	0	-1	CC(C)/C=C/C(=O)O	CC(C)/C=C/C(=O)[O-]	mol12440	CC(C)/C=C/C(=O)O