pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.55	IUPAC digitized pKa	1	0	CNc1nccc(C)[nH+]1,CNc1nc(C)cc[nH+]1,C[NH2+]c1nccc(C)n1	CNc1nccc(C)n1	mol7504	CNc1nccc(C)n1