Direct Violet 27
- CAS NO.：6426-64-8
- Empirical Formula: C32H24N5NaO11S3
- Molecular Weight: 773.74
- Update Date: 2024-12-18 14:15:30
What is Direct Violet 27?
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first with 4-Hydroxynaphthalene-2,7-disulfonic acid coupling, and then in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications
purple. Soluble in water for red light purple, and adequate soluble in ethanol for product red. In the strong sulfuric acid as dark blue, diluted for purplish red color. The dye solution to join strong hydrochloric acid for purplish red color, have precipitation; Add thick sodium hydroxide solution for red wine.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 3-4 | 4-5 | 2-3 | 1-2 | 1-2 | ||
Properties of Direct Violet 27
| EPA Substance Registry System | C.I. Direct Violet 27 (6426-64-8) |
Safety information for Direct Violet 27
Computed Descriptors for Direct Violet 27
New Products
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