pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.9	Datawarrior	0	-1	N#CC(O)=C(C#N)C#N	N#CC([O-])=C(C#N)C#N	mol13526	N#CC(O)=C(C#N)C#N