0.05 to 0.25 M
||H. S. Haraldsdottir, I. Thiele, & R. M. T. Fleming, Quantitative Assignment of Reaction Directionality in a Multicompartmental Human Metabolic Reconstruction, Biophysical J, February 17, 2012, p.1705 left column 3rd paragraphPubMed ID22768925
||Alberty, R. A., 2003. Thermodynamics of Biochemical Reactions. Wiley-Interscience, Hoboken, NJ.
||To researchers' knowledge, in vivo ionic strength has not been measured at compartmental resolution
but it is generally assumed to lie between 0.05 M and 0.25 M (primary source).