Description

C.I. Reactive Red 29 is a high-purity, water-soluble reactive dye belonging to the azo dye class, identified by CAS No. 12226-09-4. It is engineered for covalent bonding with cellulosic fibers, offering excellent wash and light fastness properties for durable coloration. This product is essential for textile manufacturers and dye houses specializing in cotton, viscose, and other natural fiber dyeing and printing processes.

Application

• Exhaust Dyeing of Cellulosic Fibers: Primary application for dyeing cotton, rayon, and linen in batch processes.
• Continuous Dyeing: Used in pad-batch and pad-steam processes for uniform, large-scale fabric coloration.
• Textile Printing: Formulated for screen and rotary printing inks on natural fiber fabrics.
• Leather Coloring: Applied in the dyeing of leather goods where reactive properties are beneficial.
• Biomolecule Staining: Potential use in laboratory settings for staining specific biological substrates.
• Research & Development: Serves as a chemical intermediate or reference standard in dye chemistry research.

Basic Information

Product Name	C.I. Reactive Red 29
CAS No.	12226-09-4
Molecular Formula	C31H19ClN7Na5O19S6
Molecular Weight	Contact for details
Synonyms	Reactive Red 29; Reactive Brilliant Red X-3B; C.I. 182289; Remazol Brilliant Red F-3B; Levafix Brilliant Red E-3B; Procion Red H-3B; Vinylsulfone Azo Dye; 1,3,6-Naphthalenetrisulfonic acid, 8-[[4-chloro-6-[[2-(sulfooxy)ethyl]sulfonyl]-1,3,5-triazin-2-yl]amino]-2-(2-sulfophenyl)azo]-, pentasodium salt
EINECS	Contact for details

Quality Control

Our C.I. Reactive Red 29 is manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including color strength, shade, solubility, and reactive group content to ensure batch-to-batch consistency and performance in your application. A Certificate of Analysis (COA) detailing purity, physical properties, and conformance to specification 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 strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Color Strength	≥ 98% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility (at 50°C)	≥ 100 g/L
pH (1% Solution)	5.0 - 7.0
Shade	Conforms to standard
Dye Content	≥ 80%

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