Acid red 9
- CAS NO.：8003-59-6
- Empirical Formula: C20H13N2NaO4S
- Molecular Weight: 400.38
- MDL number: MFCD00151319
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:55:54
What is Acid red 9?
Preparation
6-Aminonaphthalene-1-sulfonic acid and 7-Aminonaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling.
Properties and Applications
yellow light red. Slightly soluble in cold water, soluble in hot water for yellow red. The strong sulfuric acid for quality in red, dilute appear after brown precipitation. In water solution to join hydrochloric acid with brown precipitation; Add sodium hydroxide red-brown precipitation.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 2 | 3 | 2-3 | 3 | 3 | 2 | ||
Properties of Acid red 9
| form | powder to crystal |
| Colour Index | 15635 |
| color | Light yellow to Amber to Dark green |
Safety information for Acid red 9
Computed Descriptors for Acid red 9
New Products
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