Description

Reactive Yellow 39 is a high-performance, water-soluble reactive dye belonging to the vinyl sulfone class, widely recognized for its excellent color fastness and brilliant yellow hue. It is a critical component for achieving durable and vibrant coloration on cellulosic fibers like cotton, viscose, and linen. This dye is essential for textile manufacturers and dye houses seeking reliable, wash-fast, and light-fast yellow shades in their production of apparel, home textiles, and industrial fabrics. Reactive Yellow 39 CAS NO 12226-61-8 is engineered for efficient fixation and high exhaustion, ensuring optimal yield and minimal effluent load.

Application

• Exhaust Dyeing of Cellulosic Fibers: Primary application for dyeing cotton, rayon, linen, and hemp in batch processes like jet, winch, and beam dyeing.
• Continuous Dyeing Processes: Used in pad-batch, pad-steam, and pad-dry thermofix methods for uniform coloration of woven and knitted fabrics.
• Textile Printing: Formulated for use in printing pastes to create sharp, bright yellow patterns on cellulose-based textiles.
• Garment Dyeing: Suitable for dyeing finished cotton garments, offering good penetration and leveling properties.
• Blend Dyeing: Can be applied in the dyeing of cellulosic portions of polyester/cotton or other blended fabrics.
• Technical Textiles: Used for coloring industrial textiles where color consistency and fastness are paramount.

Basic Information

Product Name	Reactive Yellow 39
CAS No.	12226-61-8
Molecular Formula	C25H20ClN7Na3O11S3
Molecular Weight	872.09 g/mol
Synonyms	Reactive Yellow M-3R; C.I. Reactive Yellow 39; Reactive Golden Yellow M-3R; Vinylsulfone Reactive Yellow 39; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-, trisodium salt; Reactive Yellow H-E4R; Levafix Golden Yellow E-3RA; Remazol Golden Yellow RNL
EINECS	Contact for details

Quality Control

Our Reactive Yellow 39 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, shade, solubility, and fixation properties. We provide comprehensive Certificates of Analysis (COA) detailing purity, physical properties, and application performance data. Our production adheres to relevant industry and environmental standards, ensuring a product suitable for global textile supply chains.

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 excessive heat. The product is hygroscopic (moisture-sensitive); ensure the original packaging is sealed after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Yellow to reddish-yellow powder
Color Strength	100 ± 3% (Standard)
Solubility in Water	≥ 100 g/L (at 50°C)
Moisture Content	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Fixation Rate	≥ 70% (on cotton)
Dusting Property	Low dusting
Identification (IR)	Conforms to standard

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