pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.08	IUPAC digitized pKa	1	0	CN1C=CC2=[NH+]CCN2C1=O	CN1C=CC2=NCCN2C1=O	mol7996	CN1C=CC2=NCCN2C1=O