pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.63	AttenGpKa training set	0	-1	O=[N+]([O-])c1n[nH]c(O)n1	O=[N+]([O-])c1n[nH]c([O-])n1,O=[N+]([O-])c1n[n-]c(O)n1	mol25325	O=[N+]([O-])c1n[nH]c(O)n1