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Acid Red 163

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

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.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 5 4 3-4 4 3 4-5

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