Description

5-Isoxazolecarboxylicacid,3-Methyl-,Ethylester(6Ci,7Ci,9Ci) is a high-purity organic ester derivative of isoxazole, serving as a versatile and critical building block in advanced chemical synthesis. Its value lies in its functionalized heterocyclic structure, which makes it an essential precursor for developing novel compounds in research and industrial applications. This product is primarily needed by pharmaceutical R&D teams, agrochemical manufacturers, and specialty chemical producers seeking to create new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for heterocyclic active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used as a precursor in the manufacture of advanced pesticides, herbicides, and fungicides with novel modes of action.
• Material Science Research: Serves as a monomer or functionalizing agent in the development of specialty polymers and advanced organic materials.
• Chemical Research & Development: Employed in academic and industrial labs for method development, catalysis studies, and exploring new organic reactions.
• Fine Chemical Production: Integral to the multi-step synthesis of complex, high-value specialty chemicals for various industrial sectors.

Basic Information

Product Name	5-Isoxazolecarboxylicacid,3-Methyl-,Ethylester(6Ci,7Ci,9Ci)
CAS No.	63366-79-0
Molecular Formula	C7H9NO3
Molecular Weight	155.15 g/mol
Synonyms	Ethyl 3-Methyl-5-isoxazolecarboxylate; 3-Methylisoxazole-5-carboxylic Acid Ethyl Ester; 5-Carbethoxy-3-methylisoxazole; Ethyl 3-Methyl-1,2-oxazole-5-carboxylate; 3-Methyl-5-isoxazolecarboxylic Acid Ethyl Ester; NSC 163063; AI3-52262
EINECS	Contact for details

Quality Control

Our 5-Isoxazolecarboxylicacid,3-Methyl-,Ethylester(6Ci,7Ci,9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency meet the high standards required for synthetic applications. Certificates of Analysis (COA) detailing all specifications are 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, well-ventilated area away from incompatible materials such as strong bases and organic solvents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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