Description

5-[[5-Chloro-6-Methyl-2-(Methylsulphonyl)-4-Pyrimidinyl]Amino]-4-Hydroxy-3-[(2-Sulphophenyl)Azo]Naphthalene-2,7-Disulphonic Acid, Potassium Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart vivid and stable coloration, particularly in demanding technical applications. It is primarily sought by manufacturers in the textile, ink, and specialty chemical industries for the synthesis of advanced dyes and pigments.

Application

• Textile Dyeing: A key intermediate for synthesizing reactive and acid dyes used on cotton, wool, silk, and nylon fibers.
• Ink Formulation: Used in the production of high-performance inks for digital, packaging, and industrial printing.
• Specialty Pigments: Serves as a precursor for creating complex organic pigments with enhanced lightfastness and weather resistance.
• Biological Staining: Potential use in the development of histological stains and indicators in analytical chemistry.
• Research & Development: Employed as a standard or building block in chemical research for novel chromophore development.
• Functional Materials: Investigated for use in dye-sensitized solar cells (DSSCs) and other optoelectronic applications.

Basic Information

Product Name	5-[[5-Chloro-6-Methyl-2-(Methylsulphonyl)-4-Pyrimidinyl]Amino]-4-Hydroxy-3-[(2-Sulphophenyl)Azo]Naphthalene-2,7-Disulphonic Acid, Potassium Sodium Salt
CAS No.	72639-36-2
Molecular Formula	C22H15ClKN6NaO11S4
Molecular Weight	Contact for details
Synonyms	5-[(5-Chloro-6-methyl-2-methylsulfonylpyrimidin-4-yl)amino]-4-hydroxy-3-[(2-sulfophenyl)diazenyl]naphthalene-2,7-disulfonic acid potassium sodium salt; Azo dye intermediate 72639-36-2; CI 27290 (related); Potassium sodium 5-[(5-chloro-6-methyl-2-methylsulfonylpyrimidin-4-yl)amino]-4-hydroxy-3-[(2-sulfophenyl)diazenyl]naphthalene-2,7-disulfonate; Sulphonated azo pyrimidine dye salt; 3-[(2-Carboxyphenyl)azo]-4-hydroxy-5-[(5-chloro-6-methyl-2-methylsulfonyl-4-pyrimidinyl)amino]-2,7-naphthalenedisulfonic acid potassium sodium salt (alternative naming)
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to rigorous quality control protocols to ensure batch-to-batch consistency and purity. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles 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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals	≤ 20 ppm
Solubility (Water)	Freely soluble

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