Description

4-[[5-[(5-Chloro-2-Fluoro-6-Methyl-4-Pyrimidinyl)Amino]-2-Sulphophenyl]Azo]-1-(2,5-Disulphophenyl)-4,5-Dihydro-5-Oxo-1H-Pyrazole-3-Carboxylic Acid, Sodium Salt is a high-purity, water-soluble azo pyrazole derivative of significant industrial importance. This compound serves as a critical key intermediate in the synthesis of advanced functional dyes and pigments, valued for its complex molecular structure that imparts specific color and performance characteristics. It is primarily required by manufacturers in the specialty chemicals, textile dyeing, and advanced materials sectors for research and production.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-performance reactive dyes for cotton and other cellulosic fibers.
• Specialty Pigment Synthesis: Used in the manufacture of complex organic pigments for inks, coatings, and plastics requiring specific hue and stability.
• Functional Dye Research: Serves as a precursor in R&D for novel dyes with applications in electronics (e.g., dye-sensitized solar cells) or biomedical staining.
• Textile Chemical Production: An essential component for companies producing specialized dye intermediates and colorants for the textile industry.
• Analytical Chemistry Standard: Can be utilized as a reference standard or analytical reagent in quality control laboratories for dye analysis.

Basic Information

Product Name	4-[[5-[(5-Chloro-2-Fluoro-6-Methyl-4-Pyrimidinyl)Amino]-2-Sulphophenyl]Azo]-1-(2,5-Disulphophenyl)-4,5-Dihydro-5-Oxo-1H-Pyrazole-3-Carboxylic Acid, Sodium Salt
CAS No.	83399-93-3
Molecular Formula	C21H12ClFN6Na3O11S3
Molecular Weight	767.03 g/mol (as Sodium Salt)
Synonyms	5-Chloro-2-fluoro-6-methyl-N-[2-[(1-(2,5-disulfophenyl)-4,5-dihydro-5-oxo-4-[(3-carboxy-1H-pyrazol-4-yl)azo]phenyl]amino]pyrimidin-4-amine, trisodium salt; Reactive Dye Intermediate 83399-93-3; Azo Pyrazole Sulfonic Acid Sodium Salt; Trisodium 4-[[5-[(5-chloro-2-fluoro-6-methylpyrimidin-4-yl)amino]-2-sulfophenyl]azo]-1-(2,5-disulfophenyl)-4,5-dihydro-5-oxo-1H-pyrazole-3-carboxylate
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using modern analytical techniques including HPLC, NMR, and mass spectrometry. 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 brown to reddish-brown powder
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 (1% in Water)	Complete, clear solution

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