Description

5-Isoxazolidinecarboxylic acid, Ethyl ester (9Ci) is a versatile heterocyclic building block and synthetic intermediate. This compound is valued for its role in the synthesis of complex molecules, particularly in medicinal chemistry and agrochemical research. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, fine chemical, and life science industries for constructing novel molecular scaffolds.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of potential drug candidates, especially those containing the isoxazolidine pharmacophore.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic structure for bioactivity.
• Fine Chemical Synthesis: Acts as a versatile building block for creating complex organic molecules in custom synthesis and process chemistry.
• Academic & R&D: Employed in university and institutional laboratories for methodological studies and the exploration of new chemical reactions.
• Material Science: Investigated as a monomer or additive for specialty polymers with unique properties.

Basic Information

Product Name	5-Isoxazolidinecarboxylic acid, Ethyl ester (9Ci)
CAS No.	36839-10-8
Molecular Formula	C6H11NO3
Molecular Weight	145.16 g/mol
Synonyms	Ethyl 5-Isoxazolidinecarboxylate; Ethyl 2,3,4,5-Tetrahydro-1,2-oxazole-5-carboxylate; 5-Carbethoxyisoxazolidine; 5-Ethoxycarbonylisoxazolidine; 1,2-Oxazolidine-5-carboxylic acid, ethyl ester; Isoxazolidine-5-carboxylic acid, ethyl ester; NSC 163063
EINECS	Contact for details

Quality Control

Our 5-Isoxazolidinecarboxylic acid, Ethyl ester is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing specific results is provided with every shipment.

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 strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
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.