Description

3-Bromo-5-Isoxazolecarboxylic Acidmethylester is a high-purity heterocyclic building block of significant interest in advanced organic synthesis. This compound serves as a versatile precursor for constructing complex molecular architectures, particularly in pharmaceutical and agrochemical research. It is essential for chemists and R&D teams in fine chemical, pharmaceutical, and life science industries seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key synthon for the development of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and anti-infective agents.
• Agrochemical Research: Used in the synthesis of advanced herbicides, fungicides, and insecticides, leveraging the isoxazole ring's bioactivity.
• Material Science: Serves as a building block for functional polymers, liquid crystals, and organic electronic materials.
• Chemical Biology: Employed as a probe or linker in bioconjugation and the development of enzyme inhibitors.
• Academic & Industrial R&D: A crucial reagent for methodological studies in heterocyclic and medicinal chemistry.
• Custom Synthesis: Foundation for the contract manufacturing of specialized, high-value fine chemicals for various industrial applications.

Basic Information

Product Name	3-Bromo-5-Isoxazolecarboxylic Acidmethylester
CAS No.	272773-11-2
Molecular Formula	C5H4BrNO3
Molecular Weight	205.99 g/mol
Synonyms	Methyl 3-bromo-1,2-oxazole-5-carboxylate; Methyl 3-bromoisoxazole-5-carboxylate; 3-Bromo-5-methoxycarbonylisoxazole; 5-Isoxazolecarboxylic acid, 3-bromo-, methyl ester; 3-Bromo-5-carbomethoxyisoxazole; 3-Bromoisoxazole-5-carboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our 3-Bromo-5-Isoxazolecarboxylic Acidmethylester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliability for your most demanding synthesis workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep the container tightly sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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