Description

4-[[5-Chloro-6-Methyl-2-(Methylsulfonyl)-4-Pyrimidinyl]Amino]-5-Hydroxy-6-[(2-Sulfophenyl)Azo]-1,7-Naphthalenedisulfonic Acid Trisodium Salt is a high-purity, water-soluble azo dye intermediate with a complex, functionalized structure. This compound is valued for its ability to impart specific color and performance characteristics in advanced dye and pigment synthesis. It is primarily utilized by manufacturers in the specialty chemical, textile dyeing, and advanced materials sectors seeking consistent quality and reliable supply for their production processes.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-performance reactive dyes for cotton and other cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics requiring specific hue and stability.
• Functional Dye Synthesis: Serves as a precursor for dyes used in specialized applications, including biological staining and analytical chemistry.
• Textile Industry: Integral to creating dyes with excellent wash-fastness and light-fastness properties for the textile market.
• Research & Development: Employed in chemical R&D for developing new chromophores and studying structure-property relationships in dye chemistry.

Basic Information

Product Name	4-[[5-Chloro-6-Methyl-2-(Methylsulfonyl)-4-Pyrimidinyl]Amino]-5-Hydroxy-6-[(2-Sulfophenyl)Azo]-1,7-Naphthalenedisulfonic Acid Trisodium Salt
CAS No.	72659-67-7
Molecular Formula	C22H16ClN6Na3O12S4
Molecular Weight	812.09 g/mol (approx.)
Synonyms	Trisodium 4-((5-chloro-6-methyl-2-(methylsulfonyl)pyrimidin-4-yl)amino)-5-hydroxy-6-((2-sulfophenyl)diazenyl)naphthalene-1,7-disulfonate; Reactive Dye Intermediate 72659-67-7; Azo Dye Intermediate derived from 5-chloro-6-methyl-2-(methylsulfonyl)pyrimidine; CI Reactive Red Analog Intermediate; 1,7-Naphthalenedisulfonic acid, 4-((5-chloro-6-methyl-2-(methylsulfonyl)-4-pyrimidinyl)amino)-5-hydroxy-6-((2-sulfophenyl)azo)-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each 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 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (Water)	Freely soluble

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