pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.15	Baltruschat ChEMBL	0	-1	Cc1nonc1/C=N/O	Cc1nonc1/C=N/[O-]	mol20487	Cc1nonc1/C=N/O