Description

4-amino-3-[[5-[[5-chloro-6-methyl-2-(methylsulphonyl)-4-pyrimidinyl]amino]-2-sulphophenyl]azo]-6-[(2,5-disulphophenyl)azo]-5-hydroxynaphthalene-2,7-disulphonic acid, potassium sodium salt is a high-purity, multi-sulfonated azo dye intermediate of significant industrial importance. Its complex molecular structure provides excellent chromophoric properties and water solubility, making it a critical precursor for synthesizing specialized dyes and pigments. This compound is primarily sought by manufacturers in the textile, ink, and specialty chemical industries for producing high-value, color-fast products.

Application

• Textile Dye Intermediate: A key building block for synthesizing reactive and direct dyes for cotton, wool, and polyamide fibers.
• Specialty Ink Production: Used in the manufacture of high-performance inks for digital textile printing and security applications.
• Functional Pigment Synthesis: Serves as a precursor for creating complex organic pigments with enhanced lightfastness and thermal stability.
• Research & Development: Employed in chemical research for developing novel chromophores and studying azo dye chemistry.
• Analytical Chemistry: Can be utilized as a standard or reagent in specific colorimetric analytical methods.

Basic Information

Product Name	4-amino-3-[[5-[[5-chloro-6-methyl-2-(methylsulphonyl)-4-pyrimidinyl]amino]-2-sulphophenyl]azo]-6-[(2,5-disulphophenyl)azo]-5-hydroxynaphthalene-2,7-disulphonic acid, potassium sodium salt
CAS No.	72828-72-9
Molecular Formula	C28H16ClKN8Na3O18S6 (Contact for exact stoichiometry)
Molecular Weight	Contact for details
Synonyms	Potassium sodium 4-amino-3-[[5-[[5-chloro-6-methyl-2-(methylsulfonyl)-4-pyrimidinyl]amino]-2-sulfophenyl]azo]-6-[(2,5-disulfophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonate; Azo dye intermediate 72828-72-9; CI Reactive Dye Intermediate; Multi-sulfonated azo compound; Tetrasulfonated azo dye precursor; Potassium sodium salt of a disazo pyrimidine dye acid
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using advanced techniques including HPLC and spectrophotometry to confirm identity and strength. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with every shipment to support your quality assurance processes.

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); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals	≤ 20 ppm

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