Description

4-Isoxazolecarboxylic Acid, 3-(4-Fluorophenyl)-5-Methyl-, Methyl is a high-purity fluorinated isoxazole derivative, a crucial synthetic intermediate in modern organic chemistry. Its value lies in its unique heterocyclic scaffold, which serves as a versatile building block for constructing complex molecules with targeted biological activity. This compound is primarily needed by research and development teams in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of potential drug candidates, particularly in medicinal chemistry programs targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging the bioactivity of the isoxazole ring system.
• Chemical Synthesis: Serves as a versatile precursor for further functionalization, enabling the creation of libraries of compounds for high-throughput screening (HTS).
• Material Science Research: Potential monomer or additive in the development of specialty polymers and advanced materials with specific optical or electronic properties.

Basic Information

Product Name	4-Isoxazolecarboxylic Acid, 3-(4-Fluorophenyl)-5-Methyl-, Methyl
CAS No.	159693-09-1
Molecular Formula	C12H10FNO3
Molecular Weight	235.21 g/mol
Synonyms	Methyl 3-(4-fluorophenyl)-5-methylisoxazole-4-carboxylate; 3-(p-Fluorophenyl)-5-methyl-4-isoxazolecarboxylic acid methyl ester; 3-(4-Fluorophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid methyl ester; 4-Carbomethoxy-3-(4-fluorophenyl)-5-methylisoxazole; Methyl 3-(4-fluorophenyl)-5-methyl-1,2-oxazole-4-carboxylate; 159693-09-1; 3-(4-Fluorophenyl)-5-methylisoxazole-4-carboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our production of 4-Isoxazolecarboxylic Acid, 3-(4-Fluorophenyl)-5-Methyl-, Methyl adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request 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 controlled room temperature (typically 15-25°C). Keep away from 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)	≥98.0%
Related Substances (HPLC)	Total impurities ≤2.0%
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.