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Reactive Brown 19 CAS NO 61969-04-8
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CAS No.:61969-04-8
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
Reactive Brown 19 is a high-performance, water-soluble reactive dye designed for covalent bonding with cellulosic fibers. This product is valued for its excellent wash and light fastness properties, providing durable and vibrant coloration. It is primarily used by textile manufacturers and dye houses for dyeing and printing cotton, viscose, and other natural fibers. The compound is identified by CAS No. 61969-04-8.
Application
- Exhaust dyeing of cotton yarn and knitted fabrics.
- Continuous pad-dyeing and pad-steam processes for woven cotton.
- Textile printing applications on cellulosic substrates.
- Dyeing of viscose rayon and linen fabrics.
- Used in the formulation of specialty dye mixtures for specific shade requirements.
- Application in research and development for new textile dyeing techniques.
Basic Information
| Product Name | Reactive Brown 19 |
| CAS No. | 61969-04-8 |
| Molecular Formula | C31H19Cl2N9O13S3·xNa |
| Molecular Weight | Contact for details |
| Synonyms | C.I. Reactive Brown 19; Reactive Brown K-B4R; Reactive Brown KE4R; Reactive Brown KE-4R; Reactive Brown M-4R; Remazol Brilliant Brown 5R; Levafix Brown E-4R; Drimarene Brown K-4R |
| EINECS | Contact for details |
Quality Control
Our Reactive Brown 19 is manufactured under a stringent quality management system. Every batch undergoes comprehensive testing for key parameters including color strength, shade, solubility, and fixation rate to ensure batch-to-batch consistency and performance. Certificates of Analysis (COA) detailing purity and physical-chemical specifications are available upon request.
Storage
Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials and sources of ignition. The product is light-sensitive and should be stored away from direct light exposure.
Specification
| Item | Specification |
|---|---|
| Appearance | Brown Powder |
| Color Strength | Standard Depth ± 3% |
| Solubility (in water) | ≥ 100 g/L (50°C) |
| Moisture Content | ≤ 5.0% |
| pH (1% solution) | 6.0 - 8.0 |
| Fixation Rate | ≥ 70% |
| Identification (IR) | Conforms |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
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