pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.43	IUPAC digitized pKa	1	0	CNc1nc(C)c2ccccc2[nH+]1,CNc1nc2ccccc2c(C)[nH+]1,C[NH2+]c1nc(C)c2ccccc2n1	CNc1nc(C)c2ccccc2n1	mol7920	CNc1nc(C)c2ccccc2n1