Acid Brown 4
- CAS NO.：5858-51-5
- Empirical Formula: C16H13N3O4S.Na
- Molecular Weight: 366.35
- EINECS: 227-492-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 01:16:32
What is Acid Brown 4?
Preparation
N-(4-aminophenyl)acetamide diazo, and 5-Hydroxynaphthalene-1-sulfonic acid coupling, and then remove acetyl hydrolysis.
Flammability and Explosibility
Non flammable
Properties and Applications
red light brown. Soluble in water for red light brown, soluble in ethanol for yellow light brown. The strong sulfuric acid for wine red, dark blue, diluted to the red orange. Strong hydrochloric acid solution to join a brown orange precipitation; Add thick sodium hydroxide solution for palm orange.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3 | 3-4 | 2 | 2 | 3 | 1-2 | ||
Properties of Acid Brown 4
| Density | 1.447[at 20℃] |
| Water Solubility | 18.67g/L at 20℃ |
Safety information for Acid Brown 4
Computed Descriptors for Acid Brown 4
Acid Brown 4 manufacturer
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