L-HISTIDINE HIGH PURITY GRADE;BENEDICT'S REAGENT FOR THE QUALITATIVE;clinitest;BENEDICT'S REAGENT FOR THE QUANTITATIVE DET. OF SUGARS;BENEDICT'S REAGENT FOR THE QUALITATIVE D ET. OF SUGARS;BENEDICT'S REAGENT FOR QUALITATIVE DETERMINATION OF SUGAR;BENEDICT'S REAGENT FOR THE QUANTITATIVE DETERMINATION OF SUGAR;benedict's reagent for the qualitative determination of sugars