Description

5-Methyl-2-Phenyl-2H-Pyrazole-3-Carbonyl Chloride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. Its value lies in its role as a key building block for constructing complex heterocyclic frameworks, enabling the development of novel compounds with specific functionalities. This product is primarily needed by research institutions and manufacturers in the pharmaceutical and agrochemical industries for the development of active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly those containing pyrazole or amide functionalities.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the pyrazole core is a common bioactive moiety.
• Material Science Research: Serves as a monomer or functionalization agent in the development of specialty polymers and advanced organic materials.
• Ligand and Catalyst Development: Employed in the creation of complex ligands for metal-organic frameworks (MOFs) or catalytic systems.
• Fine Chemical Production: Acts as a versatile building block for synthesizing dyes, pigments, and other high-value specialty chemicals.
• Academic & Industrial R&D: Fundamental reagent for methodological development and exploratory chemistry in both academic and corporate research laboratories.

Basic Information

Product Name	5-Methyl-2-Phenyl-2H-Pyrazole-3-Carbonyl Chloride
CAS No.	861585-76-4
Molecular Formula	C11H9ClN2O
Molecular Weight	220.66 g/mol
Synonyms	5-Methyl-2-phenyl-2H-pyrazole-3-carbonyl chloride; 2H-Pyrazole-3-carbonyl chloride, 5-methyl-2-phenyl-; 5-Methyl-2-phenyl-1H-pyrazole-3-carbonyl chloride; 5-Methyl-2-phenylpyrazole-3-carbonyl chloride; 1H-Pyrazole-3-carbonyl chloride, 5-methyl-2-phenyl-; 5-Methyl-2-phenyl-2H-pyrazole-3-carboxylic acid chloride
EINECS	Contact for details

Quality Control

Our 5-Methyl-2-Phenyl-2H-Pyrazole-3-Carbonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 and reactive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and decomposition. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.