pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.5	IUPAC digitized pKa	1	0	[NH3+]c1cc2c3c(cccc3c1)CC2	Nc1cc2c3c(cccc3c1)CC2	mol2165	Nc1cc2c3c(cccc3c1)CC2