pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.31	IUPAC digitized pKa	1	0	Oc1cccc2ccc[n+](O)c12	[O-][n+]1cccc2cccc(O)c21	mol7776	[O-][n+]1cccc2cccc(O)c21