Description

3-Isoxazolecarboxylicacid,5-Methyl-4-Phenyl-,Ethylester(9Ci) is a specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters for its role as a key precursor in the development of novel pharmacologically active molecules, particularly within medicinal chemistry. It is primarily needed by research institutions and pharmaceutical companies engaged in the synthesis of new drug candidates, agrochemicals, and other fine chemicals where the isoxazole scaffold is a critical structural motif.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the research and development of new active pharmaceutical ingredients (APIs), particularly for compounds targeting central nervous system (CNS) disorders, anti-inflammatory agents, and antimicrobials.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and insecticides, where the isoxazole ring contributes to biological activity and stability.
• Material Science Research: Acts as a monomer or functional additive in the development of advanced polymers and specialty materials with tailored properties.
• Academic & Contract Research: Essential for synthetic chemistry research in universities and CROs (Contract Research Organizations) exploring new heterocyclic chemistry and reaction methodologies.
• Chemical Library Development: Utilized for the construction of diverse compound libraries for high-throughput screening in drug discovery programs.

Basic Information

Product Name	3-Isoxazolecarboxylicacid,5-Methyl-4-Phenyl-,Ethylester(9Ci)
CAS No.	174716-13-3
Molecular Formula	C13H13NO3
Molecular Weight	231.25 g/mol
Synonyms	Ethyl 5-methyl-4-phenylisoxazole-3-carboxylate; 5-Methyl-4-phenyl-3-isoxazolecarboxylic acid ethyl ester; 3-Carbethoxy-5-methyl-4-phenylisoxazole; 4-Phenyl-5-methylisoxazole-3-carboxylic acid ethyl ester; 174716-13-3; Ethyl 4-phenyl-5-methyl-1,2-oxazole-3-carboxylate; 5-Methyl-4-phenyl-isoxazole-3-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 3-Isoxazolecarboxylicacid,5-Methyl-4-Phenyl-,Ethylester(9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and consistent chemical identity. Certificates of Analysis (COA) detailing purity, impurities, and physical characteristics are provided with every shipment to guarantee traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

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%
Melting Point	Contact for details
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.