pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-2.06	IUPAC digitized pKa	1	0	Cc1[nH+]oc(C)c1I	Cc1noc(C)c1I	mol6731	Cc1noc(C)c1I