pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.66	IUPAC digitized pKa	1	0	C[NH+]=c1ncc(C=O)c(N)n1C,CN=c1[nH+]cc(C=O)c(N)n1C	CN=c1ncc(C=O)c(N)n1C	mol7069	CN=c1ncc(C=O)c(N)n1C