Description

C.I. Reactive Blue 71 is a high-purity, reactive anthraquinone dye widely used for its excellent color fastness and vibrant blue hue. This product is essential for achieving deep, wash-resistant coloration on cellulosic fibers like cotton and viscose. It is a critical raw material for textile manufacturers, ink formulators, and specialty chemical producers requiring a reliable and consistent blue dye source. The compound is supplied under strict quality control to ensure batch-to-batch uniformity for industrial applications.

Application

• Textile Dyeing and Printing: Primary application for dyeing cotton, linen, rayon, and other cellulosic fabrics, offering excellent wet fastness properties.
• Leather Coloring: Used in the production of dyed leather goods, providing rich and durable blue shades.
• Ink Manufacturing: A key component in the formulation of specialty inks for various printing applications.
• Paper Coloring: Employed for tinting paper products where a stable blue color is required.
• Research & Development: Serves as a standard or intermediate in chemical synthesis and analytical research laboratories.
• Biomolecule Staining: Potential use in laboratory techniques for staining biological samples.

Basic Information

Product Name	C.I. Reactive Blue 71
CAS No.	12677-15-5
Molecular Formula	C29H19ClN7O11S3·xNa
Molecular Weight	Contact for details
Synonyms	Reactive Blue 71; Reactive Blue M-2G; C.I. 621121; Remazol Brilliant Blue R; Levafix Brilliant Blue E-B; Procion Blue H-ERD; Drimarene Brilliant Blue K-2RL; Vinylsulfone Reactive Blue Dye
EINECS	Contact for details

Quality Control

Our C.I. Reactive Blue 71 is manufactured under a stringent quality management system. Every batch is tested to ensure it meets precise specifications for color strength, hue, and reactive group content, guaranteeing consistent performance in downstream applications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance metrics is provided with each shipment 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. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Blue Powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Shade	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.