Description

C.I. Reactive Blue 172 is a high-performance, water-soluble reactive dye belonging to the anthraquinone class, primarily used for dyeing and printing cellulosic fibers. Its key value lies in its excellent wash and light fastness properties, providing vibrant and durable blue shades essential for high-quality textile production. This product is a critical raw material for textile manufacturers, ink formulators, and research laboratories focused on color chemistry and material science.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, linen, and other cellulosic fibers via exhaust, pad-batch, or continuous dyeing processes.
• Textile Printing: Used in the formulation of printing pastes for direct and discharge printing on cellulosic fabrics.
• Ink Manufacturing: Serves as a colorant for specialty inks, including inks for ink-jet printing on textile substrates.
• Leather Coloring: Applied in the dyeing of leather to achieve consistent blue hues.
• Research & Development: Utilized as a standard or intermediate in chemical research for developing new dyes and studying chromophore behavior.
• Paper Staining: Employed for the coloration of specialty papers where high color strength is required.

Basic Information

Product Name	C.I. Reactive Blue 172
CAS No.	85782-76-9
Molecular Formula	C29H20ClN7O11S2
Molecular Weight	758.10 g/mol
Synonyms	Reactive Blue 172; Reactive Blue H-EGN; C.I. 612126; Remazol Brilliant Blue BB; Levafix Blue CA; Drimarene Blue K-2B; Procion Blue H-EGN; Sumifix Brilliant Blue H-EGN; Anthraquinone Blue Reactive Dye
EINECS	Contact for details

Quality Control

Our C.I. Reactive Blue 172 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including spectrophotometric analysis for strength and shade, HPLC for purity profile, and tests for solubility and fastness properties to ensure it meets precise industry specifications. Certificates of Analysis (COA) documenting all key parameters are available upon request.

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 heat sources and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark Blue Powder
Color Strength	100 ± 3% (Standard)
Shade	Conforms to Standard
Purity (HPLC)	≥ 95%
Moisture Content	≤ 5.0%
Water Solubility (at 50°C)	≥ 100 g/L
pH (1% Solution)	5.0 - 7.0
Identification (IR)	Conforms

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