pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
10.3	IUPAC digitized pKa	0	-1	O=C1CNNC(=O)N1	O=C1CN[N-]C(=O)N1,O=C1CNNC(=O)[N-]1	mol9029	O=C1CNNC(=O)N1