Description

1H-Pyrazole-3-Carboxylic Acid, 4-Bromo-, Methyl Ester is a high-purity brominated pyrazole derivative, a crucial synthetic intermediate in advanced organic chemistry. This compound matters for its role as a versatile building block, enabling the construction of complex molecular architectures with precision. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for synthesizing novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in kinase inhibitor and anti-inflammatory agent research.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators.
• Material Science Research: Serves as a precursor for creating specialized polymers, ligands, and organic electronic materials.
• Chemical Biology & Proteomics: Employed in the design of activity-based probes and molecular tags for studying biological systems.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis projects and scale-up processes in fine chemical production.

Basic Information

Product Name	1H-Pyrazole-3-Carboxylic Acid, 4-Bromo-, Methyl Ester
CAS No.	81190-89-8
Molecular Formula	C5H5BrN2O2
Molecular Weight	205.01 g/mol
Synonyms	Methyl 4-Bromo-1H-pyrazole-3-carboxylate; 4-Bromo-1H-pyrazole-3-carboxylic acid methyl ester; 4-Bromo-1H-pyrazole-3-carboxylic Acid Methyl Ester; Methyl 4-bromopyrazole-3-carboxylate; 4-Bromopyrazole-3-carboxylic acid methyl ester; 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester; 4-Bromo-3-methoxycarbonyl-1H-pyrazole
EINECS	Contact for details

Quality Control

Our 1H-Pyrazole-3-Carboxylic Acid, 4-Bromo-, Methyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical quality attributes. Our commitment to cGMP principles and ISO 9001 standards ensures reliable supply for your most demanding R&D and scale-up projects.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and stored away from direct light and moisture sources to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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