Description

Reactive Yellow 8 is a high-purity, light-sensitive reactive dye belonging to the azo chemical class, widely recognized for its vibrant yellow hue and excellent fiber reactivity. This compound is engineered for superior color fastness and batch-to-batch consistency, making it a critical component for manufacturers requiring reliable and brilliant coloration. It is primarily utilized in the textile industry for dyeing and printing cellulosic fibers like cotton and viscose, as well as in research and development for specialized colorant formulations.

Application

• Primary application in the exhaust dyeing of cotton and other cellulosic fabrics.
• Used in continuous dyeing and printing processes for textiles.
• Employed in the coloration of viscose (rayon) and blended fiber materials.
• Suitable for laboratory research and development of new dye formulations and processes.
• Potential use in the coloring of paper and leather where reactive properties are beneficial.
• Acts as a key intermediate for synthesizing more complex dye structures.

Basic Information

Product Name	Reactive Yellow 8
CAS No.	61725-58-4
Molecular Formula	C26H18ClN7Na4O16S4
Molecular Weight	1001.16 g/mol
Synonyms	Reactive Yellow 8; C.I. Reactive Yellow 8; Reactive Brilliant Yellow K-6G; Reactive Light Yellow K-6G; Reactive Yellow K-6G; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)azo]-, tetrasodium salt; Tetrasodium 5-({4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl}amino)-4-hydroxy-3-{[4-methoxy-6-methyl-1,3,5-triazin-2-yl]diazenyl}naphthalene-2,7-disulfonate
EINECS	Contact for details

Quality Control

Our Reactive Yellow 8 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, hue, and reactive group content. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee traceability and compliance with your technical requirements.

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 and sources of ignition. The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Shade	Conforms to standard
Fastness Properties	To be specified per grade

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