Description

3-Phenyl-Isoxazole-5-Carboxylic Acid Methyl Ester is a high-purity, versatile heterocyclic building block of significant interest in advanced organic synthesis. This compound matters as a key intermediate for constructing complex molecular architectures, particularly in pharmaceutical research and development. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and inflammatory pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging the isoxazole ring's bioactivity.
• Material Science: Acts as a monomer or functional additive in the research of specialty polymers and advanced organic materials.
• Chemical Biology: Employed as a molecular scaffold or probe in the study of enzyme inhibition and protein-ligand interactions.
• Academic & Contract Research: Essential for methodological development and exploratory synthesis in university laboratories and CROs (Contract Research Organizations).

Basic Information

Product Name	3-Phenyl-Isoxazole-5-Carboxylic Acid Methyl Ester
CAS No.	879216-18-9
Molecular Formula	C11H9NO3
Molecular Weight	203.19 g/mol
Synonyms	Methyl 3-phenyl-1,2-oxazole-5-carboxylate; Methyl 3-phenylisoxazole-5-carboxylate; 5-Methoxycarbonyl-3-phenylisoxazole; 3-Phenyl-5-carbomethoxyisoxazole; 879216-18-9; 3-Phenylisoxazole-5-carboxylic acid methyl ester; Isoxazole-5-carboxylic acid, 3-phenyl-, methyl ester
EINECS	Contact for details

Quality Control

Our 3-Phenyl-Isoxazole-5-Carboxylic Acid Methyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) with detailed batch-specific results are available upon request.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.