pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.3	IUPAC digitized pKa	1	0	C[C@H]1CC=[NH+]N1,C[C@H]1CC=N[NH2+]1	C[C@H]1CC=NN1	mol6857	CC1CC=NN1