pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.54999995231628	QSARToolbox	0	-1	N#CN=C(N)NC#N	N#CN=C(N)[N-]C#N,N#CN=C([NH-])NC#N	mol35229	N#CN=C(N)NC#N