Description

p-[4,5-Dihydro-4-[3-[5-Hydroxy-3-Methyl-1-(4-Sulphophenyl)-1H-Pyrazol-4-Yl]Allylidene]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid is a high-purity, functionalized pyrazole derivative containing dual sulphonic acid groups, designed for advanced chemical synthesis and specialized applications. Its molecular architecture offers excellent water solubility and reactive sites, making it a valuable intermediate for creating complex molecules with specific functional properties. This compound is essential for research and industrial sectors focused on developing specialty dyes, pharmaceutical intermediates, and high-performance chemical additives.

Application

• Key Intermediate for Reactive Dyes: Serves as a critical building block in the synthesis of high-quality, water-soluble reactive dyes for textiles, leather, and paper.
• Pharmaceutical Intermediate: Used in the research and development of novel active pharmaceutical ingredients (APIs), particularly those requiring sulphonated pyrazole motifs.
• Functional Chemical Additive: Employed in the formulation of specialty chemicals where its ionic and complexing properties are beneficial.
• Analytical Reagent & Research Chemical: Utilized in laboratory settings as a standard or reagent for method development and biochemical studies.
• Material Science Applications: Investigated for use in the development of advanced polymers and functional materials.

Basic Information

Product Name	p-[4,5-Dihydro-4-[3-[5-Hydroxy-3-Methyl-1-(4-Sulphophenyl)-1H-Pyrazol-4-Yl]Allylidene]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid
CAS No.	24704-54-9
Molecular Formula	C23H20N4O7S2
Molecular Weight	528.56 g/mol
Synonyms	Benzenesulfonic acid, p-[4,5-dihydro-4-[3-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]allylidene]-3-methyl-5-oxo-1H-pyrazol-1-yl]-; 4,5-Dihydro-4-[3-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]allylidene]-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazole; Reactive Dye Intermediate; Pyrazole Sulphonic Acid Derivative; 1-(4-Sulfophenyl)-4-[3-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]propenylidene]-3-methyl-5-pyrazolone; 24704-54-9
EINECS	Contact for details

Quality Control

Our production of p-[4,5-Dihydro-4-[3-[5-Hydroxy-3-Methyl-1-(4-Sulphophenyl)-1H-Pyrazol-4-Yl]Allylidene]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency meet exacting customer and industry specifications. A detailed Certificate of Analysis (COA) is provided with each shipment to guarantee full traceability and compliance.

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

Specification

Item	Specification
Appearance	Yellow to brownish powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulphated Ash	≤ 1.0%
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.