pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
13.9	IUPAC digitized pKa	1	0	CNC(NC)=[NH+]C	CN=C(NC)NC	mol5793	CN=C(NC)NC
14.0	IUPAC digitized pKa	1	0	CNC(NC)=[NH+]C	CN=C(NC)NC	mol5793	CN=C(NC)NC