Description

C.I. Reactive Red 44 is a high-purity, reactive azo dye belonging to the vinyl sulfone class, known for its bright red hue and excellent colorfastness properties. This dye is engineered for superior covalent bonding with cellulosic fibers, ensuring vibrant, wash-fast coloration critical for demanding textile applications. It is an essential component for dye houses and textile manufacturers specializing in cotton, viscose, and other natural fiber dyeing and printing processes.

Application

• Exhaust dyeing of cotton and other cellulosic fibers in garment and fabric production.
• Continuous pad-steam and pad-batch dyeing processes for large-scale textile manufacturing.
• Textile printing applications, including screen and rotary printing, for vibrant red shades.
• Dyeing of viscose rayon and linen to achieve high wet-fastness properties.
• Used in combination with other reactive dyes to produce a wide spectrum of compound shades.
• Application in laboratory research and development for new dye formulations and processes.

Basic Information

Product Name	C.I. Reactive Red 44
CAS No.	12226-21-0
Molecular Formula	C25H14Cl2N6Na2O11S3
Molecular Weight	819.54 g/mol
Synonyms	Reactive Red 44; Reactive Brilliant Red X-3B; Remazol Brilliant Red 3B-A; Levafix Brilliant Red E-4BA; Procion Red H-E3B; Cibacron Brilliant Red 3B-A; Vinylsulfone Reactive Dye Red 44; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[[2-(sulfooxy)ethyl]sulfonyl]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-methoxyphenyl)azo]-, disodium salt
EINECS	Contact for details

Quality Control

Our C.I. Reactive Red 44 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against rigorous internal specifications for critical parameters including color strength, hue, solubility, and reactive group content. A Certificate of Analysis (COA) detailing purity, physical properties, and application performance is provided with every shipment to guarantee it meets the demands of industrial textile processing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep the container sealed to protect the product from atmospheric moisture. Store away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Reddish-brown powder
Identification (IR)	Conforms to standard
Color Strength	≥ 98% (Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Shade on Cotton	Conforms to standard
Fastness Properties	Wash Fastness: ≥ 4; Light Fastness: ≥ 5

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