pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.17	IUPAC digitized pKa	1	0	Cc1[nH+]ccn1-c1ccccc1[N+](=O)[O-]	Cc1nccn1-c1ccccc1[N+](=O)[O-]	mol6689	Cc1nccn1-c1ccccc1[N+](=O)[O-]