pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.97	IUPAC digitized pKa	1	0	CNc1ncc2ccccc2[nH+]1,CNc1nc2ccccc2c[nH+]1,C[NH2+]c1ncc2ccccc2n1	CNc1ncc2ccccc2n1	mol7919	CNc1ncc2ccccc2n1