pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.38	IUPAC digitized pKa	-1	-2	O=S(=O)([O-])c1ccc2c(N=Nc3nccs3)c(O)ccc2c1	O=S(=O)([O-])c1ccc2c(N=Nc3nccs3)c([O-])ccc2c1	mol11910	O=S(=O)(O)c1ccc2c(N=Nc3nccs3)c(O)ccc2c1