dye|World dye variety

Name:C.I.Acid Red 163,C.I.24790

Molecular Structure: Double azo class

C.I.Acid Red 163,C.I.24790,CAS 13421-53-9,952.94,C44H34N4Na2O12S3

Molecular Formula:C₄₄H₃₄N₄Na₂O₁₂S₃

Molecular Weight: 952.94

CAS Registry Number:13421-53-9

Manufacturing Methods : 1,1-Bis(4-aminophenyl)cyclohexane double nitriding, and 4,6-Dihydroxynaphthalene-1-sulfonic acid (2 Moore) coupled, then use 1 Moore Benzenesulfonyl chloride for esterification.

Properties and Applications:  red. Soluble in water for red, slightly soluble in alcohol in red. The strong sulfuric acid for purple; After dilute for pink. In water solution to join strong hydrochloric acid for red, add thick sodium hydroxide solution for red orange brown.

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