Description

3-Isoxazolecarboxylicacid,4-Methyl-,Ethylester(9Ci) is a versatile heterocyclic building block and ester derivative of an isoxazole carboxylic acid. This compound is valued for its role as a key synthetic intermediate in the production of more complex molecules, particularly in pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and crop protection industries for constructing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel drug candidates, particularly those targeting neurological disorders and infectious diseases.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging the bioactive isoxazole scaffold.
• Chemical Research: Acts as a versatile building block in organic synthesis for constructing complex heterocyclic compounds and functionalized molecules.
• Material Science: Potential application in the development of specialty polymers, ligands for catalysis, and advanced organic materials.
• Bioconjugate Chemistry: The ester group can be utilized for further functionalization or as a protecting group in peptide and protein modification strategies.

Basic Information

Product Name	3-Isoxazolecarboxylicacid,4-Methyl-,Ethylester(9Ci)
CAS No.	38061-69-7
Molecular Formula	C7H9NO3
Molecular Weight	155.15 g/mol
Synonyms	Ethyl 4-methyl-1,2-oxazole-3-carboxylate; 4-Methyl-3-isoxazolecarboxylic acid ethyl ester; Ethyl 4-methylisoxazole-3-carboxylate; 3-Carbethoxy-4-methylisoxazole; 4-Methylisoxazole-3-carboxylic acid ethyl ester; 38061-69-7; Ethyl 4-methyl-3-isoxazolecarboxylate
EINECS	Contact for details

Quality Control

Our 3-Isoxazolecarboxylicacid,4-Methyl-,Ethylester(9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing specifications such as assay (by HPLC), identity (by IR and NMR), and impurity profiles. Our quality system supports compliance with cGMP and ISO standards for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 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.