pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.0	IUPAC digitized pKa	0	-1	CN1C(=O)CNNC1=O	CN1C(=O)CN[N-]C1=O	mol9212	CN1C(=O)CNNC1=O