pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.9	IUPAC digitized pKa	1	0	[NH3+]c1ccc(C2CC2)cc1	Nc1ccc(C2CC2)cc1	mol1663	Nc1ccc(C2CC2)cc1