pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.1	IUPAC digitized pKa	1	0	C=CCc1c(C)nc(N)[nH+]c1C,C=CCc1c(C)nc([NH3+])nc1C	C=CCc1c(C)nc(N)nc1C	mol1605	C=CCc1c(C)nc(N)nc1C