pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.01	Datawarrior	0	-1	O=c1c(O)c1-c1ccccc1	O=c1c([O-])c1-c1ccccc1	mol13977	O=c1c(O)c1-c1ccccc1