Description

2-[[5-Amino-3-Methyl-1-(3-Sulphophenyl)-1H-Pyrazol-4-Yl]Azo]-4-[[5-Chloro-6-Methyl-2-(Methylsulphonyl)-4-Pyrimidinyl]Amino]Benzenesulphonic Acid, Sodium Salt is a high-purity, complex azo dye intermediate essential for producing vibrant and stable colorants. Its value lies in its precise molecular structure, which enables the synthesis of specialized dyes with excellent lightfastness and wash resistance for demanding applications. This product is a critical raw material for manufacturers in the textile, ink, and specialty coatings industries seeking consistent quality and performance in their final formulations.

Application

This advanced azo dye intermediate is engineered for high-performance applications where color integrity and durability are paramount.

• Textile Dyeing: Primary use in synthesizing reactive and acid dyes for coloring natural fibers like cotton, wool, and silk, offering superior color yield and fastness properties.
• Inkjet Inks: A key component in the production of high-quality pigment-based inks for industrial and commercial printing, ensuring color vibrancy and stability.
• Specialty Coatings: Used in formulating colorants for automotive, industrial, and decorative coatings that require resistance to weathering and chemicals.
• Leather Finishing: Employed in dye systems for leather goods, providing deep, uniform coloration with excellent rub fastness.
• Paper Coloring: Suitable for the manufacture of dyes used in high-grade paper and packaging materials.
• Research & Development: Serves as a precise chemical building block for developing novel dyes and functional colorants in R&D laboratories.

Basic Information

Item	Detail
Product Name	2-[[5-Amino-3-Methyl-1-(3-Sulphophenyl)-1H-Pyrazol-4-Yl]Azo]-4-[[5-Chloro-6-Methyl-2-(Methylsulphonyl)-4-Pyrimidinyl]Amino]Benzenesulphonic Acid, Sodium Salt
CAS No.	83399-92-2
Molecular Formula	C23H21ClN8O7S3Na
Molecular Weight	675.10 g/mol (as Sodium Salt)
Synonyms	Sodium 2-((5-amino-3-methyl-1-(3-sulfophenyl)-1H-pyrazol-4-yl)diazenyl)-4-((5-chloro-6-methyl-2-(methylsulfonyl)pyrimidin-4-yl)amino)benzenesulfonate; 83399-92-2; Azo dye intermediate 83399-92-2; Reactive Dye Intermediate; CI Reactive Orange 84 intermediate; Benzenesulfonic acid, 2-[[5-amino-3-methyl-1-(3-sulfophenyl)-1H-pyrazol-4-yl]azo]-4-[[5-chloro-6-methyl-2-(methylsulfonyl)-4-pyrimidinyl]amino]-, sodium salt; Sodium salt of azo pyrazole pyrimidine sulfonic acid.
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity for industrial synthesis. Every 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 each shipment, supporting your own quality assurance and compliance 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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 5.0%
Solubility (1% in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm
Sulfated Ash	Contact for details

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