Description

C.I. Reactive Yellow 29 is a high-performance, water-soluble reactive dye belonging to the vinyl sulfone class. This product is engineered for exceptional color yield and wash-fastness on cellulosic fibers, making it a critical component for achieving vibrant and durable yellow shades. It is primarily used by textile manufacturers and dye houses for dyeing and printing cotton, viscose, and other natural fibers. The compound is supplied as a high-purity powder to ensure batch-to-batch consistency and optimal performance in industrial applications.

Application

• Exhaust dyeing of cotton and viscose yarns and fabrics.
• Continuous pad-steam and pad-batch dyeing processes for textiles.
• Textile printing applications for creating sharp, defined yellow patterns.
• Dyeing of cellulosic blends with synthetic fibers like polyester.
• Used in the formulation of liquid dye preparations for automated dosing systems.
• Application in the coloration of non-woven cellulosic materials.

Basic Information

Product Name	C.I. Reactive Yellow 29
CAS No.	12226-56-1
Molecular Formula	C25H20ClN7Na4O16S4
Molecular Weight	1001.17 g/mol
Synonyms	Reactive Yellow 29; Reactive Yellow M-3R; Reactive Yellow VS-3R; Reactive Brilliant Yellow M-3R; C.I. 12226; Reactive Yellow H-E4R; Vinylsulfone Reactive Yellow 29; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt
EINECS	Contact for details

Quality Control

Our production of C.I. Reactive Yellow 29 adheres to stringent quality management protocols to ensure it meets the high standards required for industrial textile dyeing. Every batch is tested for critical parameters including color strength, solubility, fixation rate, and impurity profile. Certificates of Analysis (COA) documenting purity, shade, and physical properties are available upon request to support your quality assurance and production planning.

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 stability and shelf life.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. 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 dusting

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