Description

4-Bromo-3-Methyl-1H-Pyrazole-5-Carbaldehyde is a versatile and high-value brominated pyrazole derivative, serving as a critical building block in advanced organic synthesis. Its reactive aldehyde and halogenated pyrazole core make it an indispensable intermediate for constructing complex heterocyclic frameworks. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical industries for developing novel active ingredients.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of potential drug candidates, particularly kinase inhibitors and other biologically active heterocycles.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its halogenated pyrazole structure.
• Material Science Research: Serves as a monomer or functionalizing agent in the creation of specialized polymers and organic electronic materials.
• Chemical Research & Development: A valuable scaffold for medicinal and synthetic chemistry, enabling the exploration of new chemical spaces and structure-activity relationships (SAR).
• Custom Synthesis: Employed by contract research and manufacturing organizations (CROs/CMOs) for client-specific projects requiring functionalized pyrazole chemistry.

Basic Information

Product Name	4-Bromo-3-Methyl-1H-Pyrazole-5-Carbaldehyde
CAS No.	1287752-82-2
Molecular Formula	C5H5BrN2O
Molecular Weight	189.01 g/mol
Synonyms	4-Bromo-3-methyl-1H-pyrazole-5-carboxaldehyde; 3-Methyl-4-bromo-1H-pyrazole-5-carbaldehyde; 5-Formyl-4-bromo-3-methyl-1H-pyrazole; 1H-Pyrazole-5-carboxaldehyde, 4-bromo-3-methyl-; 4-Bromo-3-methyl-1H-pyrazol-5-yl)methanone (tautomeric form); 4-Bromo-3-methylpyrazole-5-carbaldehyde
EINECS	Contact for details

Quality Control

Our 4-Bromo-3-Methyl-1H-Pyrazole-5-Carbaldehyde is produced under strict quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure high purity and consistent batch-to-batch reliability. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting identity, purity, and impurity profiles.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.