pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
0.69	IUPAC digitized pKa	2	1	Cn1[nH+][nH+]c(N)c1C(N)=O,Cn1n[nH+]c([NH3+])c1C(N)=O,Cn1[nH+]nc([NH3+])c1C(N)=O	Cn1[nH+]nc(N)c1C(N)=O,Cn1nnc([NH3+])c1C(N)=O,Cn1n[nH+]c(N)c1C(N)=O	mol7642	Cn1nnc(N)c1C(N)=O