pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.17	IUPAC digitized pKa	1	0	CC1=[NH+]NC2(CCCC2)C1,CC1=N[NH2+]C2(CCCC2)C1	CC1=NNC2(CCCC2)C1	mol6866	CC1=NNC2(CCCC2)C1