Description

5-(4-Bromophenyl)Isoxazole-3-Carboxylic Acid is a high-purity brominated isoxazole derivative, a crucial heterocyclic building block in advanced organic synthesis. Its value lies in its versatile reactivity, serving as a key precursor for constructing complex molecular architectures. This compound is primarily needed by research institutions and pharmaceutical companies engaged in the development of new active pharmaceutical ingredients (APIs), agrochemicals, and functional materials.

Application

• Pharmaceutical Intermediate: A critical synthon for the research and development of novel drug candidates, particularly in medicinal chemistry programs.
• Agrochemical Synthesis: Used as a building block in the creation of new herbicides, fungicides, and insecticides with enhanced efficacy.
• Material Science Research: Serves as a precursor for synthesizing specialized polymers, ligands, and organic electronic materials.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying biological pathways and enzyme functions.
• Academic & Contract Research: Essential for methodological development and exploratory synthesis in university and CRO (Contract Research Organization) laboratories.

Basic Information

Product Name	5-(4-Bromophenyl)Isoxazole-3-Carboxylic Acid
CAS No.	33282-23-4
Molecular Formula	C10H6BrNO3
Molecular Weight	268.07 g/mol
Synonyms	3-Isoxazolecarboxylic acid, 5-(4-bromophenyl)-; 5-(p-Bromophenyl)-3-isoxazolecarboxylic acid; 5-(4-Bromophenyl)-1,2-oxazole-3-carboxylic acid; 5-(4-Bromophenyl)isoxazole-3-carboxylic acid; 33282-23-4; 4-Bromo-α,α-bis(hydroxyimino)toluene; p-Bromophenyl isoxazole carboxylic acid
EINECS	Contact for details

Quality Control

Our 5-(4-Bromophenyl)Isoxazole-3-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat sources and incompatible materials.

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% (Standard Grade)
Loss on Drying	≤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.