pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.7	AttenGpKa training set	0	-1	N#Cc1nc(Br)[nH]c1C#N	N#Cc1nc(Br)[n-]c1C#N	mol25496	N#Cc1nc(Br)[nH]c1C#N