pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.2	IUPAC digitized pKa	1	0	C[NH+](C)c1ncc2ccccc2n1,CN(C)c1ncc2ccccc2[nH+]1,CN(C)c1nc2ccccc2c[nH+]1	CN(C)c1ncc2ccccc2n1	mol7899	CN(C)c1ncc2ccccc2n1