Acid Red 374
- CAS NO.：6507-78-4
- Empirical Formula: C38H29N4Na3O11S3
- Molecular Weight: 882.82137
- MDL number: MFCD23160438
- EINECS: 229-397-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 00:51:33
What is Acid Red 374?
Preparation
1,1-Bis(4-aminophenyl)cyclohexane double nitriding, respectively with the 7-Hydroxynaphthalene-1,3-disulfonic acid and 4-Hydroxynaphthalene-1-sulfonic acid coupling.
Properties and Applications
colourful red yellow light. Dark red powder, soluble in water for orange red, slightly soluble in ethanol for golden brown. The strong sulfuric acid to red light purple, to orange diluted. The dye solution to join strong hydrochloric acid for orange red, add thick sodium hydroxide solution for orange brown. Used for wool, silk and polyamide fiber dyeing.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 5 | 4-5 | 5 |
Acid
Alkali5 4 |
4-5 | 5 | ||
Safety information for Acid Red 374
New Products
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