Description

5-Methyl-4-(Phenylsulfonyl)-1H-Pyrazole is a versatile sulfonylpyrazole derivative, a key heterocyclic building block prized for its role in advanced organic synthesis. Its value lies in its functionalized structure, which serves as a critical intermediate for constructing more complex molecules with targeted biological or material properties. This compound is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for the creation of novel active ingredients.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of potential drug candidates, particularly those targeting enzymes or receptors where the sulfonylpyrazole moiety is a key pharmacophore.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or insecticides, leveraging its heterocyclic core for bioactivity.
• Organic Synthesis Reagent: Serves as a versatile precursor for constructing complex heterocyclic systems, fused rings, or functionalized molecules via further chemical transformations.
• Material Science Research: Investigated as a monomer or functional component in the design of specialty polymers, ligands for catalysis, or organic electronic materials.
• Chemical Biology Probe Development: Utilized to create tool compounds for studying biological pathways and protein function in academic and industrial research settings.

Basic Information

Product Name	5-Methyl-4-(Phenylsulfonyl)-1H-Pyrazole
CAS No.	51105-56-7
Molecular Formula	C10H10N2O2S
Molecular Weight	222.26 g/mol
Synonyms	4-(Benzenesulfonyl)-5-methyl-1H-pyrazole; 5-Methyl-4-(phenylsulfonyl)-1H-pyrazole; 1H-Pyrazole, 5-methyl-4-(phenylsulfonyl)-; 4-(Phenylsulfonyl)-5-methylpyrazole; 5-Methyl-4-(benzenesulfonyl)pyrazole
EINECS	Contact for details

Quality Control

Our 5-Methyl-4-(Phenylsulfonyl)-1H-Pyrazole is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing specifications such as assay (HPLC), related substances, and physical characteristics. Our quality commitment aligns with cGMP principles for advanced intermediates, ensuring reliable performance in your critical synthesis workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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