Description

5-Bromo-Benzo[D]Isoxazole-3-Carboxylic Acid is a high-purity, heterocyclic carboxylic acid derivative serving as a critical building block in advanced organic synthesis. Its value lies in its unique brominated isoxazole scaffold, which provides a versatile handle for further functionalization and incorporation into complex molecular architectures. This compound is essential for research chemists and process development scientists in the pharmaceutical and agrochemical industries, particularly for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of new drug candidates, especially in medicinal chemistry programs targeting CNS disorders, inflammation, and oncology.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and insecticides, leveraging the bioactivity of the brominated isoxazole moiety.
• Material Science Research: Serves as a precursor for the synthesis of specialized polymers, ligands, or organic electronic materials.
• Chemical Biology Probe Development: Utilized in the design and synthesis of molecular probes for studying enzyme function and biological pathways.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for the production of bespoke compounds for client projects.

Basic Information

Product Name	5-Bromo-Benzo[D]Isoxazole-3-Carboxylic Acid
CAS No.	1123169-28-7
Molecular Formula	C8H4BrNO3
Molecular Weight	242.03 g/mol
Synonyms	5-Bromobenzo[d]isoxazole-3-carboxylic acid; 3-Isoxazolecarboxylic acid, 5-bromobenzo[d]-; 5-Bromo-1,2-benzisoxazole-3-carboxylic acid; 5-Bromobenzisoxazole-3-carboxylic Acid; 1123169-28-7; 5-Bromo-benzo[d]isoxazole-3-carboxylic acid; Benzo[d]isoxazole-3-carboxylic acid, 5-bromo-
EINECS	Contact for details

Quality Control

Our 5-Bromo-Benzo[D]Isoxazole-3-Carboxylic Acid is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the exacting standards required for research and process chemistry. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability, consistency, and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 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
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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