Description

3-Ethyl-5-Methylisoxazole-4-Carbonyl Chloride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. Its value lies in its role as a key building block for constructing complex heterocyclic molecules, particularly in the pharmaceutical sector. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates, particularly those containing the isoxazole pharmacophore.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides.
• Fine Chemical Production: Serves as a precursor for various specialty chemicals and complex organic compounds.
• Research & Development: Employed in academic and industrial R&D labs for method development and exploring new chemical entities.
• Peptide Mimetics: Utilized in the creation of isoxazole-based peptide analogs and bioisosteres.

Basic Information

Product Name	3-Ethyl-5-Methylisoxazole-4-Carbonyl Chloride
CAS No.	99298-90-5
Molecular Formula	C8H10ClNO2
Molecular Weight	187.62 g/mol
Synonyms	4-Carbonyl Chloride-3-ethyl-5-methylisoxazole; 3-Ethyl-5-methyl-4-isoxazolecarbonyl chloride; 3-Ethyl-5-methylisoxazole-4-carboxylic acid chloride; 3-Ethyl-5-methyl-1,2-oxazole-4-carbonyl chloride; Isoxazole-4-carbonyl chloride, 3-ethyl-5-methyl-; 4-Isoxazolecarbonyl chloride, 3-ethyl-5-methyl-
EINECS	Contact for details

Quality Control

Our 3-Ethyl-5-Methylisoxazole-4-Carbonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.