dye|World dye variety

Name:C.I.Food Red 11,C.I.18055

Molecular Structure: Single azo class

C.I.Food Red 11,C.I.18055,CAS 4321-69-1,566.47,C20H16N4Na2O9S2

Molecular Formula:C₂₀H₁₆N₄Na₂O₉S₂

Molecular Weight: 566.47

CAS Registry Number:4321-69-1

Manufacturing Methods : N-(4-aminophenyl)acetamide diazo, and 4-Aminonaphthalene-1-sulfonic acid coupling.

Properties and Applications: blu-ray red. Soluble in water for blu-ray red to product red, slightly soluble in ethanol, acetone and soluble fiber element. Insoluble in other organic solvents. The strong sulfuric acid for blu-ray red, diluted for pink; In nitric acid solution for deep red, and then into the orange. The dye solution to join strong hydrochloric acid for product red; Add thick sodium hydroxide solution for orange brown. And C. I.Acid violet 7 and the same chemical structure.

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