pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.45	Baltruschat ChEMBL	0	-1	O/N=C\c1cnsn1	[O-]/N=C\c1cnsn1	mol20492	O/N=C\c1cnsn1