pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-4.53	AttenGpKa training set	2	1	Clc1ccc2c(c1)C[NH+]=[NH+]2	Clc1ccc2c(c1)CN=[NH+]2	mol26391	Clc1ccc2c(c1)CN=N2