Description

Trisodium 5-[[4-Chloro-6-(Ethylphenylamino)-1,3,5-Triazin-2-Yl]Amino]-4-Hydroxy-3-[(4-Methyl-2-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate is a high-purity, water-soluble reactive dye intermediate essential for creating vivid and wash-fast colors. Its complex molecular structure, featuring a triazine ring and multiple sulphonate groups, provides excellent binding affinity to cellulosic fibers like cotton and rayon. This compound is a critical raw material for manufacturers of textile dyes, specialty inks, and advanced colorants requiring superior color strength and stability.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-performance reactive dyes for the textile industry, particularly for cotton, viscose, and other cellulosic fibers.
• Specialty Ink Manufacturing: Used in formulating high-quality inks for digital textile printing and other applications demanding precise color fidelity.
• Research & Development: Serves as a reference standard and starting material in chemical R&D for developing novel chromophores and dye systems.
• Leather and Paper Coloring: Employed in the production of dyes for coloring leather and specialty papers where deep, stable shades are required.

Basic Information

Item	Details
Product Name	Trisodium 5-[[4-Chloro-6-(Ethylphenylamino)-1,3,5-Triazin-2-Yl]Amino]-4-Hydroxy-3-[(4-Methyl-2-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate
CAS No.	73816-74-7
Molecular Formula	C34H23ClN7Na3O11S3
Molecular Weight	938.21 g/mol (approx.)
Synonyms	Reactive Dye Intermediate 73816-74-7; C.I. Reactive Red 198 (Parent compound); Trisodium 4-hydroxy-3-[(4-methyl-2-sulfophenyl)azo]-5-[[4-chloro-6-[(4-ethylphenyl)amino]-1,3,5-triazin-2-yl]amino]-2,7-naphthalenedisulfonate; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(4-ethylphenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methyl-2-sulfophenyl)azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high chemical purity. Every lot is analyzed using advanced techniques like HPLC and spectrophotometry to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to support your quality assurance and regulatory compliance 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	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.