Description

C.I. Reactive Yellow 41 is a high-performance, reactive dye belonging to the azo chemical class, designed for covalent bonding with cellulosic fibers. This compound matters for its excellent color fastness, brilliant yellow hue, and reliable batch-to-batch consistency, which are critical for industrial dyeing processes. It is primarily needed by manufacturers in the textile industry for dyeing and printing cotton, viscose, and other natural fibers, as well as for research and development in specialty colorant applications.

Application

• Exhaust dyeing of cotton and other cellulosic fibers in jet, beam, and winch machines.
• Continuous pad-steam and pad-batch dyeing processes for textiles.
• Textile printing applications on cellulosic fabrics.
• Dyeing of viscose rayon and linen.
• Research and development of new dye formulations and color shades.
• Potential use in the coloration of paper and leather (subject to formulation).

Basic Information

Product Name	C.I. Reactive Yellow 41
CAS No.	12226-62-9
Molecular Formula	C29H19ClN7Na4O19S6
Molecular Weight	1185.38 g/mol
Synonyms	Reactive Yellow 41; Reactive Brilliant Yellow K-4G; C.I. 18280; Reactive Yellow K-4G; Lanasol Yellow 4G; Remazol Brilliant Yellow FG; Drimarene Yellow K-4G; Levafix Yellow E-4G
EINECS	Contact for details

Quality Control

Our C.I. Reactive Yellow 41 is manufactured under a strict quality management system. Every batch undergoes comprehensive testing for critical parameters including color strength, shade, solubility, and reactive group content to ensure it meets precise industry specifications. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee traceability and compliance.

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.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 7.0%
Water Solubility	≥ 50 g/L (at 50°C)
pH (1% Solution)	5.5 - 7.5
Dye Content	≥ 70%

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