Description

Ethyl 3-Ethyl-5-Methyl-4-Isoxazolecarboxylate is a high-purity organic compound belonging to the isoxazole class of heterocycles, valued for its role as a versatile synthetic building block. Its defined structure and purity are critical for ensuring consistent results in advanced chemical synthesis and research. This product is essential for R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable intermediates for complex molecule construction.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly those containing the isoxazole pharmacophore.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic structure for bioactivity.
• Chemical Research & Development: Serves as a fundamental building block in organic synthesis for constructing complex molecules in academic and industrial laboratories.
• Material Science Applications: Potential use in the development of advanced organic materials, including ligands for catalysts or components in specialty polymers.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis projects and scale-up processes under GMP or ISO-controlled environments.

Basic Information

Product Name	Ethyl 3-Ethyl-5-Methyl-4-Isoxazolecarboxylate
CAS No.	53064-41-8
Molecular Formula	C9H13NO3
Molecular Weight	183.21 g/mol
Synonyms	4-Isoxazolecarboxylic acid, 3-ethyl-5-methyl-, ethyl ester; Ethyl 3-ethyl-5-methyl-1,2-oxazole-4-carboxylate; 3-Ethyl-5-methyl-4-isoxazolecarboxylic acid ethyl ester; NSC 163044; Ethyl 3-ethyl-5-methylisoxazole-4-carboxylate; 4-Carbethoxy-3-ethyl-5-methylisoxazole
EINECS	Contact for details

Quality Control

Our Ethyl 3-Ethyl-5-Methyl-4-Isoxazolecarboxylate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality commitment supports applications requiring high standards, including pharmaceutical R&D.

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). Keep away from strong acids and incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.