Description

Reactive Blue 44 is a high-purity, anthraquinone-based reactive dye known for its excellent color fastness and strong covalent bonding to cellulosic fibers. This product is essential for achieving brilliant and durable blue shades in textile dyeing and printing processes. It is primarily used by manufacturers in the textile industry for dyeing cotton, viscose, and other natural fibers, as well as in research and development for specialty colorant applications.

Application

• Primary application in the exhaust dyeing of cotton and other cellulosic fibers.
• Used in continuous dyeing and printing processes for textiles.
• Suitable for dyeing viscose rayon and linen to achieve wash-fast blue hues.
• Employed in the coloration of paper and leather in specialized applications.
• Acts as a key intermediate or reference standard in dye research and quality control laboratories.
• Potential use in the preparation of colored polymers or for educational purposes in chemistry.

Basic Information

Product Name	Reactive Blue 44
CAS No.	12225-56-8
Molecular Formula	C23H14Cl2N6O8S2
Molecular Weight	637.42 g/mol
Synonyms	Reactive Blue 44; C.I. Reactive Blue 44; Remazol Brilliant Blue R; Levafix Brilliant Blue E-B; Procion Blue H-ERD; Drimarene Brilliant Blue K-2RL; Lanasol Blue 3R; Cibacron Blue F-R; Anthraquinone blue reactive dye; 1-Amino-4-[[4-[(2-bromo-1-oxoallyl)amino]-2-sulfophenyl]amino]-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic acid, dichloro-s-triazinyl derivative
EINECS	Contact for details

Quality Control

Our Reactive Blue 44 is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including spectrophotometric purity analysis and strength assessment, to ensure consistent performance and shade reproducibility. Certificates of Analysis (COA) detailing purity, strength, solubility, and other key parameters 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 integrity.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms to Standard
Color Strength	≥ 98% (vs. Standard)
Purity (HPLC)	≥ 95%
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Shade on Cotton	Conforms to Standard
Fastness Properties	Contact for details

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