Description

4-amino-3-[[5-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-2-sulphophenyl]azo]-6-[(2,5-disulphophenyl)azo]-5-hydroxynaphthalene-2,7-disulphonic acid, potassium sodium salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its complex, multi-functional structure makes it a critical precursor for synthesizing specialized dyes and pigments with enhanced color fastness and specific optical properties. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to develop advanced colorants for demanding applications.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-performance reactive dyes used in cotton and cellulose fiber dyeing.
• Specialty Pigment Synthesis: Used in the production of complex organic pigments for automotive paints, industrial coatings, and plastics requiring high durability.
• Functional Dye Manufacturing: Serves as a precursor for dyes used in ink-jet inks, particularly those requiring specific solubility and color characteristics.
• Research & Development: Employed in academic and industrial R&D labs for developing novel chromophores and studying azo dye chemistry.
• Textile Printing: Utilized in the formulation of specialized printing pastes for textile printing applications.

Basic Information

Item	Details
Product Name	4-amino-3-[[5-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-2-sulphophenyl]azo]-6-[(2,5-disulphophenyl)azo]-5-hydroxynaphthalene-2,7-disulphonic acid, potassium sodium salt
CAS No.	72828-70-7
Molecular Formula	C27H14ClF2N9O14S4·xK+·yNa+
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 72828-70-7; Azo Dye Intermediate (Chloro-difluoro-pyrimidinyl); Potassium sodium salt of tetrasulfonated azo dye; CI Reactive Red 198 intermediate (related); 4-Amino-5-hydroxy-3,6-bis(arylazo)naphthalene-2,7-disulfonic acid derivative; 72828-70-7 (CAS name abbreviation); Multisulfonated azo pyrimidine dye intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity for your synthesis processes. Every lot is analyzed using advanced techniques like HPLC to confirm identity and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific tests is provided with each shipment to support your quality management systems.

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 tightly sealed after opening to prevent moisture absorption, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (Area %)
Purity (HPLC)	Contact for details
Water Content	≤ 5.0% (KF)
Solubility	Soluble in water
Heavy Metals	≤ 20 ppm

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