pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
13.0	Datawarrior	-1	-2	O=C/C(O)=C\[O-]	O=C/C([O-])=C\[O-]	mol15860	O=C/C(O)=C\O