pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.41	IUPAC digitized pKa	-1	-2	O=S(=O)([O-])c1ccc2c(N=Nc3nc4ccccc4s3)c(O)ccc2c1	O=S(=O)([O-])c1ccc2c(N=Nc3nc4ccccc4s3)c([O-])ccc2c1	mol12177	O=S(=O)(O)c1ccc2c(N=Nc3nc4ccccc4s3)c(O)ccc2c1