Molecular Structure: Single azo class
Molecular Weight: 480.42
CAS Registry Number:3761-53-3
Properties and Applications: light yellow and red to red. Soluble in water for red light orange to red, slightly soluble in ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid for cherry red to product red, diluted red for yellow; In nitric acid solution for orange. The dye solution to join strong hydrochloric acid have red precipitate; Add thick sodium hydroxide solution for orange brown; And 10% sodium hydroxide solution palm red light; Add nitric acid for colourful red, to orange. And C. I.Acid red 26 and the same chemical structure.
List of Suppliers:
Daiwa Ponceau R( Kaseihin Kogyo Kyokai )
Devar Ponceau R( Devarsons Industries Ltd )