Description

C.I. Reactive Blue 90 is a high-performance, reactive anthraquinone dye known for its brilliant blue shade and excellent fastness properties. It is a critical component in the textile industry for achieving durable and vibrant coloration on cellulosic fibers like cotton and viscose. This product is essential for manufacturers of textiles, leather, and paper who require consistent, high-quality dyeing with strong wash and light fastness. Our supply ensures reliable batch-to-batch consistency for industrial-scale applications.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton, linen, rayon, and other cellulosic fibers.
• Textile Printing: Used in printing pastes for creating sharp, blue designs on fabric with good fixation.
• Leather Coloring: Imparts a stable blue color to leather goods with good rub fastness.
• Paper Staining: Employed for coloring specialty papers and paper products.
• Biomedical Staining: Potential use as a biological stain in laboratory and diagnostic applications.
• Research & Development: Serves as a chemical intermediate or reference standard in R&D laboratories.

Basic Information

Product Name	C.I. Reactive Blue 90
CAS No.	61968-99-8
Molecular Formula	C29H19ClN7O11S3·xNa
Molecular Weight	~840.21 (Free Acid)
Synonyms	Reactive Blue 90; Reactive Blue KE-GN; Reactive Blue M-2GE; C.I. 61215; Remazol Brilliant Blue R Special; Levafix Blue CA; Procion Blue H-EGN; Drimarene Blue K-2RL; Anthraquinone Blue Dye; 1-Amino-4-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]amino]-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our C.I. Reactive Blue 90 is manufactured under a strict quality management system to ensure it meets the high standards required for industrial dyeing. Every batch is tested for critical parameters including color strength, shade, solubility, and reactive group content to guarantee performance consistency. Certificates of Analysis (COA) detailing purity, physical properties, and application test results 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 incompatible materials. The product is light-sensitive and should be stored away from direct light exposure to prevent degradation.

Specification

Item	Specification
Appearance	Dark Blue Powder
Color Strength	100 ± 3% (Standard)
Moisture Content	≤ 5.0%
Water Solubility	≥ 50 g/L (at 50°C)
pH (1% Solution)	5.0 - 7.0
Identification (IR)	Conforms to Standard
Heavy Metals (as Pb)	≤ 20 ppm

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