Description

Reactive Yellow 27 is a high-performance, water-soluble reactive dye belonging to the azo dye class, identified by CAS NO 12226-54-9. It is engineered for exceptional color fastness and brilliant yellow hues, providing reliable and consistent results in demanding industrial dyeing processes. This product is essential for manufacturers in the textile industry who require durable, vibrant coloration for cellulosic fibers like cotton and viscose.

Application

• Primary application in the exhaust dyeing of cotton yarns and fabrics.
• Used in the continuous dyeing and printing processes for cellulosic textiles.
• Ideal for producing bright, wash-fast yellow shades on viscose and linen.
• Suitable for dyeing in combination with other reactive dyes to achieve a wide color gamut.
• Employed in the coloration of home textiles and apparel where color consistency is critical.
• Can be used in batch-wise dyeing operations with high fixation efficiency.

Basic Information

Product Name	Reactive Yellow 27
CAS No.	12226-54-9
Molecular Formula	C25H20ClN7Na4O16S4
Molecular Weight	1029.18 g/mol
Synonyms	Reactive Yellow 27; C.I. Reactive Yellow 27; Reactive Golden Yellow K-3R; Reactive Brilliant Yellow K-3R; 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 27 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, solubility, and fixation properties. Certificates of Analysis (COA) documenting purity, shade, and physical specifications are available upon request to support your quality assurance protocols.

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. 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 orange powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (Standard)
Moisture Content	≤ 5.0%
Water Solubility (at 50°C)	≥ 100 g/L
pH (1% Solution)	6.0 - 8.0
Fixation Rate	≥ 70%
Dusting Grade	Low

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