Description

2,5-Dichloro-4-[4-[(4-Chlorophenyl)Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid is a specialized azo dye intermediate of significant commercial importance. Its precise molecular structure is engineered to impart specific color properties and stability in demanding applications. This compound is primarily utilized by manufacturers in the dye and pigment industry, as well as in research and development for advanced materials. We supply this high-purity intermediate to support consistent and reliable production processes globally.

Application

• Primary Intermediate for Azo Dyes and Pigments: Serves as a key building block in the synthesis of high-performance yellow to orange azo colorants.
• Textile Dye Manufacturing: Used in the production of dyes for coloring natural and synthetic fibers, valued for color fastness.
• Industrial Pigment Production: A critical precursor for creating pigments used in paints, inks, and plastics.
• Research & Development: Employed in chemical research for developing new chromophores and functional dyes with specific optical properties.
• Specialty Chemical Synthesis: Utilized as an intermediate in the synthesis of more complex, value-added chemical products.

Basic Information

Item	Details
Product Name	2,5-Dichloro-4-[4-[(4-Chlorophenyl)Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid
CAS No.	67846-58-6
Molecular Formula	C16H11Cl3N4O4S
Molecular Weight	461.70 g/mol
Synonyms	Benzenesulfonic acid, 2,5-dichloro-4-[4-[(4-chlorophenyl)azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]-; 2,5-Dichloro-4-[4-(4-chlorophenyl)azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonic acid; Azo dye intermediate 67846-58-6; 1H-Pyrazole-1-benzenesulfonic acid derivative; 4-[4-(4-Chlorophenyl)hydrazinylidene-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl]-2,5-dichlorobenzenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of 2,5-Dichloro-4-[4-[(4-Chlorophenyl)Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques like HPLC to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to support your quality assurance requirements.

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 sealed when not in use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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