Description

Ethyl 5-Bromo-3-Methylisoxazole-4-Carboxylate is a high-purity, versatile heterocyclic building block essential for advanced organic synthesis. This compound is valued for its reactive bromine and ester functional groups, which enable precise molecular construction in complex chemical pathways. It is primarily sought after by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals.

Application

• Pharmaceutical Intermediate: A key synthon in the synthesis of complex drug candidates, particularly those containing the isoxazole pharmacophore.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic structure for bioactivity.
• Organic Synthesis Building Block: Serves as a versatile precursor for cross-coupling reactions (e.g., Suzuki, Sonogashira) and further functional group transformations.
• Material Science Research: Employed in the creation of specialized organic molecules for advanced materials and ligand systems.
• Academic & R&D Laboratories: Utilized in methodological studies and the exploration of new synthetic routes in heterocyclic chemistry.

Basic Information

Product Name	Ethyl 5-Bromo-3-Methylisoxazole-4-Carboxylate
CAS No.	25786-74-7
Molecular Formula	C7H8BrNO3
Molecular Weight	234.05 g/mol
Synonyms	5-Bromo-3-methyl-4-isoxazolecarboxylic acid ethyl ester; Ethyl 5-bromo-3-methyl-1,2-oxazole-4-carboxylate; 4-Carbethoxy-5-bromo-3-methylisoxazole; 5-Bromo-3-methylisoxazole-4-carboxylic acid ethyl ester; 25786-74-7; Ethyl 5-bromo-3-methylisoxazole-4-carboxylate
EINECS	Contact for details

Quality Control

Our Ethyl 5-Bromo-3-Methylisoxazole-4-Carboxylate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents and strong bases.

Specification

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