321. The selective absorption of optical antipodes by proteins. Part III

Abstract

Wool which had previously combined with sulphuric acid or l-p-sulphophenylazo-2-naphthol combines with, and resolves, a reduced amount of mandelic or p-heptyloxymandelic acid. The results indicate that the anions of sulphuric acid and the arylazo-sulphonic acid also become attached to ammonium centres in wool, and that the numbers of sites on which the resolution of mandelate anions can occur is limited. A similar conclusion was reached from a study of m-nitromandelic acid and 5-(2 : 4-dinitroanilino)-2-ptoluidinobenzenesulphonic acid.