pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.31	Datawarrior	0	-1	O=C(O)/C=C/c1ccoc1	O=C([O-])/C=C/c1ccoc1	mol12933	O=C(O)/C=C/c1ccoc1
4.30999994277954	QSARToolbox	0	-1	O=C(O)/C=C/c1ccoc1	O=C([O-])/C=C/c1ccoc1	mol12933	O=C(O)/C=C/c1ccoc1