pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.0	IUPAC digitized pKa	0	-1	CN1C(=O)c2nccnc2N[C@H]1O	CN1C(=O)c2nccnc2[N-][C@H]1O	mol4774	CN1C(=O)c2nccnc2NC1O