Description

5-[[4-Chloro-6-[ethyl[3-[[2-(sulfooxy)ethyl]sulfonyl] phenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(1-sulfo-2-naphthalenyl)azo]-2,7-naphthalenedisulfonic acid sodium salt is a high-performance, water-soluble reactive dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple sulfonic acid groups and a reactive triazine moiety, is engineered to deliver excellent color fastness, high substantivity, and brilliant shades in demanding applications. This compound is primarily utilized by manufacturers in the textile, ink, and specialty chemical sectors who require reliable intermediates for producing advanced dyes and pigments.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-grade reactive dyes used in cotton, viscose, and other cellulosic fiber dyeing and printing.
• Textile Industry: Imparts vibrant and wash-fast colors in textile processing, suitable for exhaust, pad-batch, and continuous dyeing methods.
• Ink Formulation: Used in the production of specialty inks, including inks for digital textile printing, requiring high solubility and color strength.
• Leather Coloring: Employed in the formulation of dyes for leather finishing to achieve deep, uniform coloration.
• Paper Dyeing: Suitable for coloring paper products where high water-fastness is required.
• Research & Development: Serves as a valuable building block in chemical R&D for developing new chromophores and functional dyes.

Basic Information

Item	Details
Product Name	5-[[4-Chloro-6-[ethyl[3-[[2-(sulfooxy)ethyl]sulfonyl] phenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(1-sulfo-2-naphthalenyl)azo]-2,7-naphthalenedisulfonic acid sodium salt
CAS No.	718619-88-6
Molecular Formula	C₃₃H₂₆ClN₉O₁₇S₄ • xNa
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 718619-88-6; C.I. Reactive Dye Precursor; Sodium 5-[(4-chloro-6-{ethyl[3-({2-[(sulfonyloxy)ethyl]sulfonyl}phenyl)amino]-1,3,5-triazin-2-yl}amino)-4-hydroxy-3-[(1-sulfo-2-naphthyl)azo]naphthalene-2,7-disulfonate; Triazine-based Azo Dye Intermediate; Azo-Triazine Sulfonate Salt; Textile Dye Intermediate; Water-soluble Reactive Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive analytical testing, including HPLC for purity, spectrophotometry for color strength, and titration for active content. A Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with every shipment to support your quality assurance and regulatory needs.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 90% (Typical)
Moisture Content	≤ 5.0%
Ash Content	Contact for details
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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