Description

Ethyl 1-(3-Bromophenyl)-3-Methyl-1H-Pyrazole-5-Carboxylate is a high-purity brominated pyrazole derivative, a crucial advanced intermediate for synthesizing complex active pharmaceutical ingredients (APIs) and agrochemicals. Its value lies in providing a versatile, functionalized scaffold for constructing molecules with targeted biological activity, enabling research and development in life sciences. This compound is essential for pharmaceutical R&D chemists, agrochemical manufacturers, and fine chemical suppliers focused on creating new therapeutic agents and crop protection solutions.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Synthesis: Serves as a precursor for developing new-generation pesticides, herbicides, and fungicides, leveraging the pyrazole core's bioactivity.
• Material Science Research: Used in the development of organic electronic materials, ligands for catalysis, and specialty polymers due to its aromatic and heterocyclic structure.
• Chemical Biology & Proteomics: Employed as a scaffold for designing chemical probes and inhibitors to study enzyme function and biological pathways.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the global pharmaceutical and agrochemical industries.

Basic Information

Product Name	Ethyl 1-(3-Bromophenyl)-3-Methyl-1H-Pyrazole-5-Carboxylate
CAS No.	209958-55-4
Molecular Formula	C13H13BrN2O2
Molecular Weight	309.16 g/mol
Synonyms	1-(3-Bromophenyl)-3-methyl-1H-pyrazole-5-carboxylic acid ethyl ester; Ethyl 3-methyl-1-(3-bromophenyl)-1H-pyrazole-5-carboxylate; 5-Carbethoxy-3-methyl-1-(3-bromophenyl)pyrazole; 1H-Pyrazole-5-carboxylic acid, 1-(3-bromophenyl)-3-methyl-, ethyl ester; 209958-55-4; 3-Methyl-1-(3-bromophenyl)-1H-pyrazole-5-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our Ethyl 1-(3-Bromophenyl)-3-Methyl-1H-Pyrazole-5-Carboxylate is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) with each shipment, confirming compliance with customer specifications and industry best practices for fine chemical intermediates.

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). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC/IR)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Any single impurity	≤ 0.5%
Residual Solvents (GC)	Meets ICH Q3C guidelines
Heavy Metals	< 10 ppm
Loss on Drying	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.