Description

4-Bromo-1-Methylpyrazole is a versatile heterocyclic building block, specifically a halogenated pyrazole derivative. This compound is highly valued in organic synthesis for its reactivity as an intermediate in constructing more complex molecular architectures. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical industries for applications in medicinal chemistry and crop protection science.

Application

• Pharmaceutical Intermediate: A key synthon in the development of active pharmaceutical ingredients (APIs), particularly for kinase inhibitors and other small-molecule therapeutics.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands used in transition metal catalysis and coordination chemistry.
• Material Science Research: Employed in the synthesis of organic electronic materials and functional polymers.
• Chemical Biology Probes: Utilized to build molecular probes for studying biological pathways and enzyme functions.
• Custom Synthesis and Contract Manufacturing: A critical starting material for custom synthesis projects and scale-up processes in fine chemical manufacturing.

Basic Information

Product Name	4-Bromo-1-Methylpyrazole
CAS No.	15803-02-8
Molecular Formula	C4H5BrN2
Molecular Weight	161.00 g/mol
Synonyms	1-Methyl-4-bromopyrazole; 4-Bromo-1-methyl-1H-pyrazole; 1H-Pyrazole, 4-bromo-1-methyl-; 4-Bromopyrazole, 1-methyl-; NSC 406901
EINECS	Contact for details

Quality Control

Our 4-Bromo-1-Methylpyrazole is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

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). Keep away from incompatible materials such as strong oxidizing agents.

Specification

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