pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-1.62	Datawarrior	1	0	[O-][n+]1c2ccccc2[n+](O)c2ccccc21	[O-][n+]1c2ccccc2[n+]([O-])c2ccccc21	mol14497	[O-][n+]1c2ccccc2[n+](O)c2ccccc21