Description

4-Isoxazolecarboxylic Acid, 5-(4-Bromophenyl)-3-Methyl-, Methyl Ester is a high-purity, functionalized isoxazole derivative of significant interest in advanced organic synthesis. This compound serves as a versatile and valuable pharmaceutical intermediate and chemical building block for the development of novel active molecules. It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and material science sectors for constructing complex heterocyclic frameworks.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of potential drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, or infectious diseases.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or insecticides, leveraging the bioactivity of the isoxazole and bromophenyl motifs.
• Material Science Precursor: Serves as a monomer or functional additive in the creation of specialized polymers, liquid crystals, or organic electronic materials.
• Chemical Synthesis Reagent: Employed in medicinal chemistry for structure-activity relationship (SAR) studies and library synthesis due to its reactive ester group and halogen substituent.
• Academic & R&D: Utilized in university and contract research laboratories for methodological development and exploring new chemical reactions involving halogenated heterocycles.

Basic Information

Product Name	4-Isoxazolecarboxylic Acid, 5-(4-Bromophenyl)-3-Methyl-, Methyl Ester
CAS No.	1228689-61-9
Molecular Formula	C12H10BrNO3
Molecular Weight	296.12 g/mol
Synonyms	Methyl 5-(4-Bromophenyl)-3-methylisoxazole-4-carboxylate; 5-(4-Bromophenyl)-3-methyl-4-isoxazolecarboxylic Acid Methyl Ester; 3-Methyl-5-(4-bromophenyl)isoxazole-4-carboxylic acid methyl ester; 4-Carbomethoxy-5-(4-bromophenyl)-3-methylisoxazole; Methyl 3-methyl-5-(p-bromophenyl)isoxazole-4-carboxylate
EINECS	Contact for details

Quality Control

Our production of 4-Isoxazolecarboxylic Acid, 5-(4-Bromophenyl)-3-Methyl-, Methyl Ester adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, GC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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, sparks, and open flame. The compound is light-sensitive and should be stored away from light as indicated.

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%
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.