pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.77	AttenGpKa training set	0	-1	[O-]/[N+](O)=C\c1ccccc1	[O-][N+]([O-])=Cc1ccccc1	mol27853	[O-]/[N+](O)=C\c1ccccc1