pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.29	IUPAC digitized pKa	1	0	[NH3+]C1([NH3+])C=CC(S(=O)(=O)[O-])=CC1,NC1([NH3+])C=CC(S(=O)(=O)O)=CC1	NC1([NH3+])C=CC(S(=O)(=O)[O-])=CC1	mol5991	NC1(N)C=CC(S(=O)(=O)O)=CC1