ESCULETIN was found in an extract of plant tissue which contained caffeic acid. The esculetin was not a natural product but was formed from caffeic acid during the paper-chromatographic purification ...
FOR the paper chromatography of steroids several colour reagents are used, such as 2,4-dinitrophenyl-hydrazine, Zimmermann's reagent, phosphomolybdic acid, antimony trichloride, etc. Their common ...
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