pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.03	Datawarrior	0	-1	O=C/C(O)=C/O	O=C/C(O)=C/[O-]	mol15859	O=C/C(O)=C/O
5.055	AttenGpKa training set	0	-1	O=C/C(O)=C/O	O=C/C(O)=C/[O-]	mol15859	O=C/C(O)=C/O
12.9	AttenGpKa training set	-1	-2	O=C/C(O)=C/[O-]	O=C/C([O-])=C/[O-]	mol15859	O=C/C(O)=C/O