Description

3-[[1-(3-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]-4-Hydroxy-5-Nitrobenzenesulphonic Acid is a specialized azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing high-performance pigments and dyes with excellent color fastness and stability. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid and durable colors.

Application

• Primary Intermediate for Azo Pigments: Serves as a key building block in the synthesis of high-performance organic pigments used in industrial coatings and plastics.
• Textile Dye Manufacturing: Used in the production of dyes for synthetic fibers, offering good wash and light fastness properties.
• Ink Formulations: Employed in the creation of colorants for specialty printing inks, including packaging and security inks.
• Research & Development: Utilized in chemical research for developing novel chromophores and studying azo coupling reactions.
• Functional Dyes: Potential applications in the synthesis of dyes for non-textile uses, such as in paper coloration or as biological stains.

Basic Information

Product Name	3-[[1-(3-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]-4-Hydroxy-5-Nitrobenzenesulphonic Acid
CAS No.	23969-24-6
Molecular Formula	C16H12ClN5O7S
Molecular Weight	453.81 g/mol
Synonyms	Benzenesulfonic acid, 3-[[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-5-nitro-; 3-[(1-(3-Chlorophenyl)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl)azo]-4-hydroxy-5-nitrobenzenesulfonic acid; Azo dye intermediate 23969-24-6; 4-Hydroxy-3-[(1-(3-chlorophenyl)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl)azo]-5-nitrobenzenesulfonic acid; 1H-Pyrazole-4-azo benzenesulfonic acid derivative; C.I. Azoic Coupling Component (related); Chlorophenyl methyl pyrazolone azo dye acid
EINECS	Contact for details

Quality Control

Our production of 3-[[1-(3-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]-4-Hydroxy-5-Nitrobenzenesulphonic Acid adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet exacting specifications. A Certificate of Analysis (COA) detailing key parameters is provided with every shipment to guarantee traceability and compliance with your quality requirements.

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 nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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