Description

Sodium 2-[3-[[1-(4-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]-4-Hydroxybenzoyl]Benzoate is a high-purity, water-soluble azo dye intermediate essential for producing vibrant and stable colorants. Its value lies in its precise molecular structure, which enables the synthesis of high-performance pigments and dyes with excellent lightfastness and chemical resistance. This compound is a critical raw material for manufacturers in the textile, ink, and specialty coatings industries seeking to develop superior color products.

Application

• Primary Intermediate for Azo Pigments & Dyes: Serves as a key building block in the synthesis of high-performance organic pigments used in industrial applications.
• Textile Dye Manufacturing: Used in the production of dyes for coloring synthetic and natural fibers, valued for color strength and wash-fastness.
• Inkjet and Printing Inks: A crucial component in formulating advanced inks that require bright hues and stability under various environmental conditions.
• Plastic and Polymer Coloring: Employed in the masterbatch production for coloring plastics, ensuring uniform dispersion and heat stability during processing.
• Specialty Coatings and Paints: Used to manufacture pigments for automotive, industrial, and decorative coatings that demand durability and UV resistance.
• Research & Development: Serves as a standard or experimental compound in chemical R&D for developing new colorant technologies and formulations.

Basic Information

Product Name	Sodium 2-[3-[[1-(4-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]-4-Hydroxybenzoyl]Benzoate
CAS No.	85135-96-2
Molecular Formula	C24H16ClN4NaO5
Molecular Weight	514.86 g/mol
Synonyms	Sodium 2-{3-[(1-(4-Chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl]-4-hydroxybenzoyl}benzoate; Benzoic acid, 2-[3-[[1-(4-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxybenzoyl]-, sodium salt; Azo dye intermediate 85135-96-2; 1H-Pyrazole-4-carboxylic acid, 1-(4-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-4-[(2-sodiooxycarbonylphenyl)carbonyl-2-hydroxy-phenyl]azo-, sodium salt; CI 12715 (related class); Water-soluble pyrazolone azo dye salt.
EINECS	Contact for details

Quality Control

Our production of Sodium 2-[3-[[1-(4-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]-4-Hydroxybenzoyl]Benzoate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Every lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling. A Certificate of Analysis (COA) detailing identity, purity, and specific test results is provided with each shipment to support your quality assurance and regulatory 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 tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines
pH (1% Solution)	6.0 - 8.0
Water Content (Karl Fischer)	≤ 1.5%

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