Alpha-Naphthyl Red Hydrochloride is an organic compound used for the detection of proteins and other molecules. It is a red-coloured, water-soluble powder that is highly sensitive and has a wide range of applications in biochemistry. It is a useful tool for researchers in a variety of fields, including pharmacology, biochemistry and molecular biology. Alpha-Naphthyl Red Hydrochloride is an invaluable reagent for the detection of proteins and other molecules in a range of laboratory studies.