Description

Reactive Yellow 176 is a high-performance, water-soluble reactive dye belonging to the azo class, designed for covalent bonding with cellulosic fibers. Its primary value lies in delivering brilliant, wash-fast yellow shades with excellent reproducibility and good all-around fastness properties. This dye is essential for textile manufacturers and dye houses specializing in the coloration of cotton, viscose, and other natural fibers, particularly for applications requiring high color yield and reliable performance in exhaust and continuous dyeing processes.

Application

• Exhaust dyeing of cotton and regenerated cellulose fibers (e.g., viscose, lyocell).
• Continuous dyeing processes, including pad-batch and pad-steam methods for woven fabrics.
• Production of vibrant yellow shades for apparel, home textiles, and fashion fabrics.
• Dyeing of cotton yarns for sewing threads and embroidery floss.
• Used in combination with other reactive dyes to achieve a broad spectrum of green, orange, and brown hues.
• Suitable for dyeing in modern, low-salt or salt-free reactive dyeing systems to reduce environmental impact.

Basic Information

Product Name	Reactive Yellow 176
CAS No.	140876-15-9
Molecular Formula	C29H19ClN7Na4O19S6
Molecular Weight	1135.31 g/mol
Synonyms	Reactive Yellow M-5G; C.I. Reactive Yellow 176; Reactive Yellow M5G; Yellow M-5G; 5-Amino-4-hydroxy-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-6-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-2,7-naphthalenedisulfonic acid tetrasodium salt; Reactive Brilliant Yellow M-5G; Levafix Yellow CA
EINECS	Contact for details

Quality Control

Our Reactive Yellow 176 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, shade, solubility, and fixation rate to meet the demanding standards of the global textile industry. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and application performance is provided with every shipment.

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 heat sources and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellow to orange powder
Color Strength	Standard Depth ± 3%
Solubility in Water (50°C)	≥ 100 g/L
pH (1% Solution)	6.0 - 8.0
Moisture Content	≤ 5.0%
Dusting Property	Low dusting
Identification (IR)	Conforms to standard
Fixation Rate	≥ 70% (Standard conditions)

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