pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.5	QSARToolbox	-1	-2	COc1ccccc1NN=C1C=C(S(=O)(=O)[O-])c2ccccc2C1=O	COc1ccccc1[N-]N=C1C=C(S(=O)(=O)[O-])c2ccccc2C1=O	mol37920	COc1ccccc1NN=C1C=C(S(=O)(=O)O)c2ccccc2C1=O