Description

Reactive Blue 49 is a high-purity, reactive anthraquinone dye used for covalent bonding to cellulosic and polyamide fibers. This compound matters for its excellent wash and light fastness properties, providing vibrant and durable blue coloration in demanding textile applications. Industries that need it include textile manufacturers, specialty chemical producers, and research laboratories focused on dye chemistry and material science.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, and other cellulosic fibers.
• Wool and Silk Coloration: Used for coloring protein-based fibers like wool and silk.
• Nylon and Polyamide Dyeing: Effective for dyeing synthetic polyamide fibers.
• Leather Coloring: Employed in the leather industry for dyeing hides and finished leather goods.
• Research & Development: Serves as a key intermediate or reference standard in chemical R&D for new dye formulations.
• Specialty Inks: Potential use in the formulation of specialty inks for specific industrial marking.

Basic Information

Product Name	Reactive Blue 49
CAS No.	12236-92-9
Molecular Formula	C29H19ClN7O11S3
Molecular Weight	804.16 g/mol
Synonyms	Reactive Blue 49; C.I. Reactive Blue 49; Remazol Brilliant Blue R; Levafix Brilliant Blue E-B; Drimarene Brilliant Blue R-Z; Procion Brilliant Blue H-EG; 1-Amino-4-[[4-[(4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid
EINECS	Contact for details

Quality Control

Our Reactive Blue 49 is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure consistent purity, color strength, and reactive group content, meeting the high standards required for industrial dyeing processes. A Certificate of Analysis (COA) detailing key parameters such as assay, hue, and solubility is provided with every 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 and incompatible materials.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Conforms
pH (1% Solution)	6.0 - 8.0

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