Acid red 163
- CAS NO.：13421-53-9
- Empirical Formula: C44H37N4NaO12S3
- Molecular Weight: 932.97
- EINECS: 236-531-1
- Update Date: 2025-12-17 09:49:41
What is Acid red 163?
Preparation
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 | ||
Safety information for Acid red 163
New Products
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