Description

5-Chloro-3-Methylpyrazole is a versatile heterocyclic building block of significant importance in modern synthetic chemistry. Its unique structure, featuring both chloro and methyl substituents on the pyrazole ring, makes it a critical intermediate for constructing more complex molecules. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical industries for the development of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with pyrazole-based scaffolds.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides, where the chloromethylpyrazole moiety imparts specific biological activity.
• Organic Synthesis Building Block: Employed in research and development for constructing complex heterocyclic compounds, ligands, and functional materials.
• Material Science Research: Acts as a monomer or modifying agent in the development of specialty polymers and advanced organic materials.

Basic Information

Product Name	5-Chloro-3-Methylpyrazole
CAS No.	15953-45-4
Molecular Formula	C4H5ClN2
Molecular Weight	116.55 g/mol
Synonyms	3-Methyl-5-chloropyrazole; 5-Chloro-3-methyl-1H-pyrazole; 1H-Pyrazole, 5-chloro-3-methyl-; 5-Chloro-3-methylpyrazol; 5-Chloro-3-methyl-1H-pyrazol; 5-Chloro-3-methylpyrazole (major)
EINECS	Contact for details

Quality Control

Our 5-Chloro-3-Methylpyrazole is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay and impurity profiles. Our quality commitment ensures the material meets the high standards required for research and commercial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.