Description

Reactive Yellow 24 is a high-performance, water-soluble anionic dye belonging to the reactive azo dye class, specifically designed for covalent bonding with cellulosic fibers. Its primary value lies in delivering brilliant, wash-fast yellow shades with excellent reproducibility and good all-around fastness properties. This dye is essential for textile manufacturers and dye houses seeking reliable coloration for cotton, viscose, and other cellulose-based materials. The compound is supplied as a high-purity powder to ensure consistent batch-to-batch performance in demanding industrial applications.

Application

• Textile Dyeing (Exhaust Process): Primary application for dyeing cotton, rayon, linen, and other cellulosic fibers in garment, yarn, and fabric form.
• Textile Printing: Used in the printing paste formulation for creating sharp, vibrant yellow patterns on cellulose fabrics.
• Pad-Batch and Pad-Steam Dyeing: Suitable for continuous and semi-continuous dyeing processes for high-volume production.
• Leather Coloring: Employed for dyeing leather goods where a reactive bond with protein fibers is beneficial.
• Paper Coloring: Used in specialty paper production where high color fastness is required.
• Research & Development: Serves as a standard or intermediate in chemical research and dye synthesis laboratories.

Basic Information

Product Name	Reactive Yellow 24
CAS No.	12226-51-6
Molecular Formula	C25H20ClN7O10S3·2Na
Molecular Weight	~802.10 g/mol (Disodium Salt)
EINECS	Contact for details
Synonyms	Reactive Yellow K-4G; Reactive Yellow X-4G; C.I. Reactive Yellow 24; Reactive Brilliant Yellow X-4G; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-, disodium salt; Levafix Yellow E-4G; Procion Yellow MX-4G; Remazol Yellow RR

Quality Control

Our Reactive Yellow 24 is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, shade, solubility, and reactive group content. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as purity, inorganic salt content, and dye content. Our production adheres to relevant industry and environmental standards to guarantee consistent performance for our global customers.

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 hygroscopic (moisture-sensitive); ensure the original container is sealed after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Yellow to Brownish-Yellow Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Within agreed tolerance
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.2%
Dye Content (by HPLC)	≥ 70.0%
pH (1% Solution)	6.0 - 8.0
Solubility in Water	≥ 100 g/L (at 50°C)
Fastness Properties	Wash Fastness: 4-5; Light Fastness: 5-6 (Typical on Cotton)

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