Description

2,7-Naphthalenedisulfonic acid, 5-4-chloro-6-4-2-(sulfooxy)ethylsulfonylphenylamino-1,3,5-triazin-2-ylamino-4-hydroxy-3-4-2-(sulfooxy)ethylsulfonylphenylazo-, tetrasodium salt is a high-purity, water-soluble reactive dye intermediate of significant industrial importance. Its complex molecular structure is engineered to provide exceptional color strength and covalent bonding properties with cellulosic fibers. This compound is essential for manufacturers requiring advanced, wash-fast, and light-fast dyes for textiles and specialty materials. Its production is subject to stringent quality control to ensure batch-to-batch consistency for demanding industrial applications.

Application

• Primary Intermediate for Reactive Dyes: Serves as a key building block in the synthesis of high-performance reactive dyes, particularly for cotton, viscose, and other cellulosic fibers.
• Textile Dyeing and Printing: Used in formulations for exhaust dyeing, continuous dyeing, and printing processes, offering excellent fixation and brilliant shades.
• Specialty Pigment Manufacturing: Can be utilized in the production of certain high-value, water-soluble pigments for inks and coatings.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Functional Material Synthesis: Potential use in creating colored polymers or materials where covalent attachment of a colorant is required.

Basic Information

Item	Details
Product Name	2,7-Naphthalenedisulfonic acid, 5-4-chloro-6-4-2-(sulfooxy)ethylsulfonylphenylamino-1,3,5-triazin-2-ylamino-4-hydroxy-3-4-2-(sulfooxy)ethylsulfonylphenylazo-, tetrasodium salt
CAS No.	111211-40-6
Molecular Formula	C31H22ClN7Na4O19S6 (Contact for exact confirmation)
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 111211-40-6; Tetrasodium 5-[[4-chloro-6-[[4-[2-(sulfooxy)ethylsulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[[4-[2-(sulfooxy)ethylsulfonyl]phenyl]azo]-2,7-naphthalenedisulfonate; CI Reactive Red 268 (related); Azo-triazine reactive dye intermediate; Sulfonated azo dye intermediate; VS (vinyl sulfone) type reactive dye precursor; Water-soluble naphthalene dye intermediate.
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to rigorous quality testing protocols to ensure it meets the precise specifications required for consistent dye manufacturing. Every batch is analyzed using modern analytical techniques like HPLC and spectrophotometry to confirm identity, purity, and colorimetric properties. Certificates of Analysis (COA) detailing all critical parameters are available upon request, providing full traceability and compliance with global supply chain requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking and hydrolysis. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 90% (Contact for specific grade)
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
pH (1% Solution)	6.0 - 8.0

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