pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.4	Datawarrior	0	-1	Cc1nnc(/C=N/O)s1	Cc1nnc(/C=N/[O-])s1	mol13681	Cc1nnc(/C=N/O)s1