Description

Reactive Brown 14 CAS NO 12225-70-6 is a high-performance, bifunctional reactive dye belonging to the azo chemical class, designed for covalent bonding with cellulose fibers. This compound is valued for its excellent wash and light fastness properties, providing durable and vibrant coloration. It is primarily required by textile manufacturers for dyeing and printing applications on cotton, viscose, and other cellulosic materials, ensuring consistent batch-to-batch quality for industrial-scale production.

Application

• Textile Dyeing: Exhaust and continuous dyeing processes for cotton, rayon, linen, and other cellulosic fabrics.
• Textile Printing: Used in pigment printing pastes and inks for creating patterned designs on garments and home textiles.
• Leather Coloring: Application in dyeing leather goods where good penetration and color fastness are required.
• Paper Staining: Imparting color to specialty papers and paper products.
• Biomolecule Staining: Potential use in laboratory settings for staining biological specimens, though specific protocols should be verified.
• Research & Development: Serves as a chemical intermediate or reference standard in synthetic chemistry and dye research.

Basic Information

Product Name	Reactive Brown 14
CAS No.	12225-70-6
Molecular Formula	C29H19ClN7Na4O19S6
Molecular Weight	1136.31 g/mol
Synonyms	Reactive Brown 14; C.I. Reactive Brown 14; Reactive Brown K-4R; Reactive Brown M-4R; Levafix Brown E-4R; Remazol Brown RR; Drimarene Brown K-4R; Procion Brown H-4R
EINECS	Contact for details

Quality Control

Our Reactive Brown 14 is manufactured under a stringent quality management system. Every batch is tested to ensure it meets precise specifications for color strength, shade, solubility, and reactive group content. A comprehensive Certificate of Analysis (COA) detailing purity, physical parameters, and performance characteristics is provided with each shipment to guarantee consistent quality and reliability for your production processes.

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 strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Brown powder
Identification (IR)	Conforms to standard
Color Strength	≥ 98% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Shade	Within agreed tolerance
Fastness Properties	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.