Description

3-Bromoisoxazole-5-Carboxylic Acid is a versatile heterocyclic building block of significant importance in modern synthetic chemistry. Its core value lies in its bifunctional structure, featuring both a reactive bromine substituent and a carboxylic acid group, enabling diverse derivatization pathways. This compound is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for the synthesis of complex molecules and novel chemical entities.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing the isoxazole pharmacophore for various therapeutic applications.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Ligand and Catalyst Development: Serves as a starting material for creating specialized ligands used in transition metal catalysis and organometallic chemistry.
• Material Science Research: Employed in the construction of organic frameworks, polymers, and functional materials requiring specific heterocyclic components.
• Custom Synthesis & Contract Manufacturing: A critical building block for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving global clients.
• Academic & Industrial R&D: Fundamental research reagent for exploring new chemical reactions, methodologies, and the development of chemical libraries.

Basic Information

Item	Details
Product Name	3-Bromoisoxazole-5-Carboxylic Acid
CAS No.	6567-35-7
Molecular Formula	C4H2BrNO3
Molecular Weight	191.97 g/mol
Synonyms	5-Bromo-1,2-oxazole-3-carboxylic acid; 5-Bromoisoxazole-3-carboxylic acid; 3-Bromo-5-isoxazolecarboxylic acid; 3-Bromo-1,2-oxazole-5-carboxylic acid; 5-Bromo-3-isoxazolecarboxylic acid; Isoxazole-5-carboxylic acid, 3-bromo-; 6567-35-7 (CAS RN)
EINECS	Contact for details

Quality Control

Every batch of 3-Bromoisoxazole-5-Carboxylic Acid is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards and provide comprehensive analytical documentation. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available for all shipments upon request.

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 incompatible materials such as strong bases and reducing agents.

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	≤ 1.0%
Residue on Ignition	≤ 0.5%

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