pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.54	IUPAC digitized pKa	0	-1	Cn1nc2nc(S(C)(=O)=O)[nH]c(=O)c2n1	Cn1nc2nc(S(C)(=O)=O)[n-]c(=O)c2n1	mol9905	Cn1nc2nc(S(C)(=O)=O)[nH]c(=O)c2n1