Description

Trisodium 7-[[4-Chloro-6-[(3-Sulphonatophenyl)Amino]-1,3,5-Triazin-2-Yl]Amino]-4-Hydroxy-3-[(4-Methoxy-2-Sulphonatophenyl)Azo]Naphthalene-2-Sulphonate is a high-purity, water-soluble reactive dye intermediate essential for creating vibrant and wash-fast colors. Its molecular structure, featuring multiple sulphonate groups and a reactive triazine moiety, provides excellent substantivity and covalent bonding capabilities with cellulosic fibers. This compound is a critical raw material for manufacturers of reactive dyes targeting the textile, leather, and paper industries, where consistent color strength and fastness properties are paramount.

Application

• Primary Intermediate for Reactive Dyes: Synthesis of high-performance reactive dyes for cotton, viscose, and other cellulosic fibers.
• Textile Dyeing and Printing: Used in exhaust, pad-batch, and continuous dyeing processes to achieve brilliant shades with excellent wet fastness.
• Leather Coloring: Manufacture of dyes for high-quality leather finishing, providing deep, uniform coloration.
• Paper Industry: Production of specialty dyes for coloring paper and paperboard where brightness and lightfastness are required.
• Ink Formulation: A key component in the synthesis of pigments for certain types of industrial inks.
• Research & Development: Serves as a standard or building block in chemical research for developing new chromophores and dye systems.

Basic Information

Item	Detail
Product Name	Trisodium 7-[[4-Chloro-6-[(3-Sulphonatophenyl)Amino]-1,3,5-Triazin-2-Yl]Amino]-4-Hydroxy-3-[(4-Methoxy-2-Sulphonatophenyl)Azo]Naphthalene-2-Sulphonate
CAS No.	64181-81-3
Molecular Formula	C26H16ClN7Na3O11S3
Molecular Weight	830.06 g/mol
Synonyms	Reactive Dye Intermediate 64181-81-3; C.I. Reactive Orange 84; Trisodium 4-hydroxy-3-[(4-methoxy-2-sulfophenyl)azo]-7-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-naphthalenesulfonate; Reactive Orange 84; 7-[[4-Chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methoxy-2-sulfophenyl)azo]-2-naphthalenesulfonic acid trisodium salt
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to strict quality management systems, ensuring batch-to-batch consistency for your manufacturing processes. Every lot is analyzed to confirm identity, purity, and absence of critical impurities that could affect downstream dye performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each 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). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1% w/v
Heavy Metals (as Pb)	≤ 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.