Description

C.I. Reactive Yellow 76 is a high-performance, water-soluble reactive dye belonging to the vinyl sulfone class, known for its bright and vibrant yellow hue. It is engineered to deliver excellent color yield and superior fastness properties, including wash, light, and perspiration fastness, on cellulosic fibers. This product is essential for textile manufacturers and dye houses seeking reliable and efficient coloration for cotton, viscose, and other natural fibers. The compound is identified by CAS NO 88232-21-7.

Application

This reactive dye is primarily used in the textile industry for a variety of demanding coloration processes.

• Exhaust Dyeing of Cotton: For batch-wise dyeing processes in jiggers, winches, and jet dyeing machines.
• Continuous Dyeing: Applied in pad-batch, pad-steam, and pad-dry thermofix processes for high-volume production.
• Viscose and Linen Coloration: Provides bright shades with good penetration and levelness on regenerated and other cellulosic fibers.
• Union Dyeing: Suitable for dyeing blends of cotton with polyester or other synthetic fibers using appropriate dye combinations.
• Garment Dyeing: Used for dyeing finished apparel items to achieve uniform and fashionable colors.
• Yarn Dyeing: For coloring cotton or viscose yarns intended for weaving or knitting.

Basic Information

Product Name	C.I. Reactive Yellow 76
CAS No.	88232-21-7
Molecular Formula	C29H19ClN7Na3O13S4
Molecular Weight	~ 958.18 g/mol
Synonyms	Reactive Yellow 76; Reactive Golden Yellow SNE; C.I. 18852; Reactive Yellow SNE; Vinylsulfone Reactive Yellow 76; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[[3-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, trisodium salt; Levafix Golden Yellow SNE; Remazol Golden Yellow SNE
EINECS	Contact for details

Quality Control

Our C.I. Reactive Yellow 76 is manufactured under a strict quality management system. Every batch undergoes rigorous testing to ensure consistent shade, strength, solubility, and fastness properties meet the high standards required by the textile industry. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as color strength, hue, and impurity profile. Our production adheres to relevant environmental and safety standards, including REACH compliance for the global market.

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). This product is hygroscopic (moisture-sensitive); the original container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange powder
Color Strength	100 ± 3% (vs. Standard)
Hue	Conforms to Standard
Solubility in Water	≥ 100 g/L (at 50°C)
Moisture Content	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Fastness Properties (on Cotton)	Wash: 4-5; Light: 5-6; Perspiration: 4-5
Identification (IR)	Conforms to Structure

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