Description

C.I. Reactive Red 65 is a high-performance, water-soluble reactive dye belonging to the azo dye class, designed for covalent bonding with cellulosic fibers. Its primary value lies in delivering brilliant, wash-fast red shades with excellent reproducibility and good all-round fastness properties. This product is essential for industrial textile dyeing and printing operations, particularly for cotton, viscose, and other natural fibers, where consistent color yield and process reliability are critical.

Application

• Textile Dyeing of Cellulosic Fibers: Primary application for exhaust and continuous dyeing of cotton, rayon, linen, and hemp to achieve vibrant red hues.
• Textile Printing: Used in pigment printing processes for fabrics, offering sharp definition and color fastness.
• Leather Coloring: Employed in the dyeing of leather goods where a reactive bond with the substrate is desired.
• Paper Coloration: Suitable for tinting and coloring of specialty papers where water-fastness is a requirement.
• Research & Development: Serves as a standard or intermediate in chemical research and quality control laboratories for dye analysis.

Basic Information

Product Name	C.I. Reactive Red 65
CAS No.	12226-32-3
Molecular Formula	C29H19ClN7Na3O15S4
Molecular Weight	995.18 g/mol
Synonyms	Reactive Red 65; Reactive Brilliant Red X-3B; C.I. 18221; Remazol Brilliant Red F3B; Levafix Brilliant Red E-4BA; Procion Red H-E3B; Drimarene Brilliant Red X-3B; Vinylsulfone Reactive Dye
EINECS	Contact for details

Quality Control

Every batch of C.I. Reactive Red 65 is manufactured and tested under a strict quality management system. We ensure compliance with industry standards for reactive dyes, including parameters for shade, strength, solubility, and fixation rate. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee batch-to-batch consistency and meet your technical specifications.

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 moisture to maintain product integrity and prevent caking.

Specification

Item	Specification
Appearance	Reddish-brown 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)	6.0 - 8.0
Fixation Rate	≥ 70%
Dusting Grade	Low dusting

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