Description

Reactive Red 46 is a high-purity, reactive azo dye belonging to the vinyl sulfone class, widely recognized for its excellent color fastness and brilliant red hue. Its primary value lies in its ability to form a strong covalent bond with cellulose fibers, ensuring superior wash and light fastness in dyed textiles. This product is essential for manufacturers in the textile industry seeking reliable and vibrant coloration for cotton, viscose, and other cellulosic materials.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers to achieve a bright red shade.
• Fabric Printing: Used in printing pastes for textile printing applications on natural and blended fabrics.
• Leather Coloring: Employed in the dyeing of leather goods to provide durable and vibrant red colors.
• Paper Staining: Suitable for coloring paper products where high color strength and stability are required.
• Research & Development: Serves as a standard or intermediate in chemical research and dye synthesis laboratories.

Basic Information

Product Name	Reactive Red 46
CAS No.	12226-23-2
Molecular Formula	C25H14Cl2N6Na2O10S2
Molecular Weight	747.43 g/mol
Synonyms	Reactive Red VS-R; C.I. Reactive Red 46; Remazol Red RB; Levafix Red E-4BA; Procion Red H-EXL; Sumifix Red 2BF; Vinylsulfone Reactive Red 46; 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-[(4-[(2-(sulfooxy)ethyl)sulfonyl]phenyl]azo]-6-[(2,4,6-trichlorophenyl)azo]-, disodium salt
EINECS	Contact for details

Quality Control

Our Reactive Red 46 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including color strength, solubility, and reactive group content. Certificates of Analysis (COA) detailing purity, shade, and application performance are available upon request to support your quality assurance protocols.

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 and moisture to maintain product stability and shelf life.

Specification

Item	Specification
Appearance	Red powder
Identification (IR)	Conforms
Color Strength	≥ 100% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Dye Content	≥ 70.0%
Fastness Properties	Conforms to industry standards

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