pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.4	IUPAC digitized pKa	-1	-2	O=S(=O)([O-])c1ccc(N=Nc2c(O)ccc3ccccc23)cc1	O=S(=O)([O-])c1ccc(N=Nc2c([O-])ccc3ccccc23)cc1	mol12112	O=S(=O)(O)c1ccc(N=Nc2c(O)ccc3ccccc23)cc1