Acid Red 73

Alias: sodium 6-hydroxy-5 - (4-phenylazophenylazo) naphthalene-2,4-disulfonate

Molecular formula: c22h14n4na2o7s2

Molecular weight: 556.48

Grade: BS

Water dissolution test: qualified

 Physicochemical Properties: yellow light red powder. It is soluble in water as a red solution, soluble in alcohol and fibrinolysin, insoluble in acetone and insoluble in other organic solvents. It is reddish purple in the presence of concentrated sulfuric acid and generates reddish brown precipitate after dilution; When encountering concentrated nitric acid, it turns blue and turns olive brown to orange. Its aqueous solution is added with concentrated hydrochloric acid to form dark reddish brown precipitate, and sodium hydroxide solution is added to form dark brown precipitate. When dyeing, the color of copper and iron ions is dark. Good discharge.

Purpose: biochemical research

Saving: RT