Description

5-(2-Ethoxyphenyl)-3-Isoxazolecarboxylic Acid Ethyl Ester is a high-purity organic intermediate of significant importance in advanced chemical synthesis. This compound matters for its role as a versatile building block in the development of complex molecules, particularly in the pharmaceutical and agrochemical sectors. Industries that require precise and reliable fine chemical components for research and production, such as pharmaceutical R&D, agrochemical manufacturing, and specialty chemical synthesis, are the primary users of this material.

Application

• As a key pharmaceutical intermediate in the synthesis of novel active pharmaceutical ingredients (APIs).
• Utilized in agrochemical research for the development of new herbicides, fungicides, or insecticides.
• Serving as a specialized building block in organic and medicinal chemistry for constructing complex heterocyclic frameworks.
• Used in academic and industrial R&D laboratories for method development and scale-up studies.
• Potential application as a precursor for the synthesis of functional materials or dyes.

Basic Information

Product Name	5-(2-Ethoxyphenyl)-3-Isoxazolecarboxylic Acid Ethyl Ester
CAS No.	668971-91-3
Molecular Formula	C14H15NO4
Molecular Weight	261.27 g/mol
Synonyms	Ethyl 5-(2-ethoxyphenyl)isoxazole-3-carboxylate; 3-Isoxazolecarboxylic acid, 5-(2-ethoxyphenyl)-, ethyl ester; 5-(2-Ethoxyphenyl)-3-isoxazolecarboxylic acid ethyl ester; Ethyl 5-(o-ethoxyphenyl)-1,2-oxazole-3-carboxylate; 5-(2-Ethoxyphenyl)isoxazole-3-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 5-(2-Ethoxyphenyl)-3-Isoxazolecarboxylic Acid Ethyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.