pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.43	IUPAC digitized pKa	1	0	C[NH+]=c1onc(-c2ccccc2)n1C	CN=c1onc(-c2ccccc2)n1C	mol7583	CN=c1onc(-c2ccccc2)n1C