Description

3-[[(3-Cyano-4,5-Dihydro-5-Oxo-1-Phenyl-1H-Pyrazol)-4-Yl]Azo]-4-Methoxybenzenesulfonic Acid Chloride is a high-purity, reactive chemical intermediate primarily used in the synthesis of specialized dyes and pigments. This compound matters for its role as a key building block in creating colorants with specific, stable chromophoric properties for demanding applications. It is essential for manufacturers and R&D laboratories in the fine chemical, dye, and advanced material sectors seeking to develop or produce high-performance colorants.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a critical precursor in the synthesis of high-value, complex azo dyes, particularly yellow to orange shades.
• Specialty Textile Dye Manufacturing: Used in producing dyes for synthetic fibers requiring excellent lightfastness and washfastness.
• Functional Dye Synthesis: A key starting material for creating dyes used in non-textile applications, such as inks, coatings, and plastics.
• Research & Development: Employed in academic and industrial R&D for exploring novel chromophores and dye structures with tailored properties.
• Fine Chemical Synthesis: Utilized as a reactive sulfonyl chloride derivative in custom organic synthesis for pharmaceutical or agrochemical intermediates where specific azo linkages are required.

Basic Information

Item	Details
Product Name	3-[[(3-Cyano-4,5-Dihydro-5-Oxo-1-Phenyl-1H-Pyrazol)-4-Yl]Azo]-4-Methoxybenzenesulfonic Acid Chloride
CAS No.	62592-55-6
Molecular Formula	C18H12ClN5O4S
Molecular Weight	429.83 g/mol
Synonyms	4-Methoxy-3-[(5-ox-1-phenyl-4-[(E)-phenylhydrazono]-4,5-dihydro-1H-pyrazol-3-yl)azo]benzenesulfonyl chloride; Benzenesulfonic acid, 3-[(3-cyano-4,5-dihydro-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-methoxy-, chloride; Reactive dye intermediate 62592-55-6; Azo pyrazolone sulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of our 3-[[(3-Cyano-4,5-Dihydro-5-Oxo-1-Phenyl-1H-Pyrazol)-4-Yl]Azo]-4-Methoxybenzenesulfonic Acid Chloride undergoes rigorous analytical testing to ensure it meets the high-purity standards required for fine chemical synthesis. Our quality assurance protocols are designed to guarantee batch-to-batch consistency and reliability. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under dry, inert conditions to prevent decomposition. Keep away from heat, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%

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