Description

4-Isoxazoleaceticacid,5-Ethyl-(9Ci) CAS NO 155602-47-4 is a high-purity, specialized heterocyclic building block containing both an isoxazole ring and a carboxylic acid functional group. This unique molecular architecture makes it a valuable intermediate for the synthesis of novel compounds in advanced research and development. It is primarily sought after by pharmaceutical, agrochemical, and material science industries for applications in medicinal chemistry, crop protection, and the development of functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for molecules targeting neurological or inflammatory pathways.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and insecticides, leveraging the bioactivity of the isoxazole moiety.
• Material Science Research: Acts as a monomer or functionalizing agent in the development of specialty polymers, coatings, and advanced materials with tailored properties.
• Chemical Biology & Proteomics: Employed as a building block for synthesizing molecular probes, enzyme inhibitors, and other tools for biochemical research.
• Academic & Contract Research: Essential for synthetic organic chemistry research in academic institutions and CROs (Contract Research Organizations) exploring new heterocyclic chemistry.

Basic Information

Product Name	4-Isoxazoleaceticacid,5-Ethyl-(9Ci)
CAS No.	155602-47-4
Molecular Formula	C7H9NO3
Molecular Weight	155.15 g/mol
Synonyms	5-Ethylisoxazole-4-acetic acid; 4-Isoxazoleacetic acid, 5-ethyl-; 5-Ethyl-4-isoxazoleacetic acid; (5-Ethyl-1,2-oxazol-4-yl)acetic acid; 5-Ethyl-1,2-oxazole-4-acetic acid; 155602-47-4; 4-Carboxymethyl-5-ethylisoxazole
EINECS	Contact for details

Quality Control

Every batch of 4-Isoxazoleaceticacid,5-Ethyl-(9Ci) is produced and analyzed under strict quality management protocols. Our products undergo rigorous quality testing, including advanced chromatographic and spectroscopic methods, to ensure compliance with industry standards and customer specifications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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 chemical nature as a strong acid/organic solvent, it should be kept away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
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.