Description

1-Methyl-5-Phenyl-1H-Pyrazole-3-Carbonyl Chloride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. This compound is valued for its role as a key building block in the creation of complex heterocyclic molecules, offering a versatile handle for further functionalization. It is primarily required by research and development laboratories and production facilities in the pharmaceutical and agrochemical sectors for the synthesis of active ingredients and novel compounds.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those with pyrazole-based scaffolds targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the pyrazole moiety contributes to biological activity.
• Material Science Research: Serves as a building block for creating specialized polymers, ligands, or organic electronic materials with tailored properties.
• Chemical Research & Development: Employed in academic and industrial R&D for method development and the exploration of new chemical reactions involving acid chlorides.
• Custom Synthesis: A starting material for contract research organizations (CROs) and CDMOs producing bespoke fine chemicals for client projects.

Basic Information

Product Name	1-Methyl-5-Phenyl-1H-Pyrazole-3-Carbonyl Chloride
CAS No.	859850-98-9
Molecular Formula	C11H9ClN2O
Molecular Weight	220.66 g/mol
Synonyms	1-Methyl-5-phenyl-1H-pyrazole-3-carbonyl chloride; 1-Methyl-5-phenyl-1H-pyrazole-3-carboxylic acid chloride; 3-Carboxy-1-methyl-5-phenylpyrazole chloride; 5-Phenyl-1-methyl-1H-pyrazole-3-carbonyl chloride; 1-Methyl-5-phenylpyrazole-3-carbonyl chloride; 859850-98-9; 1-Methyl-5-phenyl-1H-pyrazole-3-carboxychloride
EINECS	Contact for details

Quality Control

Our 1-Methyl-5-Phenyl-1H-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 guarantee compliance with your research and production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This compound is moisture-sensitive and reacts with strong acids/organic solvents; keep the container tightly sealed under an inert atmosphere such as nitrogen or argon to prevent degradation. Keep away from heat, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	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.