dye|World dye variety

Name:C.I.Acid Red 231,C.I.17040

Molecular Structure: Single azo class

C.I.Acid Red 231,C.I.17040,CAS 6360-06-1,422.39,C18H15N4NaO5S

Molecular Formula:C₁₈H₁₅N₄NaO₅S

Molecular Weight: 422.39

CAS Registry Number:6360-06-1

Manufacturing Methods : N-(4-aminophenyl)acetamide diazo, and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid  in acid conditions coupled.

Properties and Applications: dark blue light red. Soluble in water for orange, red for the strong sulfuric acid in purple, diluted red for blue-ray. In aqueous solution to join strong hydrochloric acid, a red brown precipitation; In the thick sodium hydroxide solution of color.

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