Description

Reactive Blue 59 is a high-purity, reactive anthraquinone dye designed for demanding textile coloration processes. Its primary value lies in its excellent wash and light fastness properties, providing vibrant and durable blue shades on cellulosic fibers. This product is essential for textile manufacturers, dye houses, and chemical distributors serving the global fabric production industry.

Application

• Textile Dyeing (Primary Application): Exhaust and continuous dyeing of cotton, viscose, and other cellulosic fibers.
• Textile Printing: Used in printing pastes for creating sharp, colorfast blue designs on fabrics.
• Leather Coloring: Imparts stable blue colors to leather goods.
• Paper Staining: Employed for coloring specialty papers and paper products.
• Research & Development: Serves as a reference standard or intermediate in chemical synthesis and dye research.
• Industrial Colorant: Potential use in coloring non-textile materials where a reactive blue colorant is required.

Basic Information

Product Name	Reactive Blue 59
CAS No.	12270-71-2
Molecular Formula	C22H16ClN7O11S3·2Na
Molecular Weight	773.08 g/mol (Disodium salt)
Synonyms	Reactive Blue 59; C.I. Reactive Blue 59; Remazol Brilliant Blue R; Levafix Brilliant Blue E-B; Drimarene Brilliant Blue R-K2L; Procion Brilliant Blue H-EG; Anthraquinone blue reactive dye; 1-Amino-4-[3-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-sulfophenylamino]anthraquinone-2-sulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our Reactive Blue 59 is manufactured under a stringent quality management system. Every batch is tested to ensure consistent strength, shade, and reactivity. Key parameters including color strength, solubility, and fixation rate are verified against strict internal specifications. A Certificate of Analysis (COA) detailing purity and performance characteristics is provided with each shipment.

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 light-sensitive (store away from light) and hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Dark blue powder
Identification (IR)	Conforms to standard
Color Strength	≥ 98% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	≥ 50 g/L (at 50°C)
pH (1% Solution)	5.5 - 7.5
Fixation Rate	≥ 70% (on cotton)
Dusting Property	Low dusting

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