Description

5-Isoxazolepropanoic Acid is a versatile heterocyclic building block featuring a reactive carboxylic acid group attached to an isoxazole ring. This compound is valued for its role as a key synthetic intermediate in the development of pharmaceuticals and agrochemicals. It is particularly sought after by research and development chemists in the pharmaceutical, agrochemical, and fine chemical industries for constructing complex molecules with potential biological activity.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing active pharmaceutical ingredients (APIs), particularly in medicinal chemistry research for novel drug candidates.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging the bioactive isoxazole scaffold.
• Fine Chemical Production: Serves as a specialized intermediate in the synthesis of complex organic compounds for research and high-value chemical applications.
• Bioconjugation & Linker Chemistry: The carboxylic acid group enables its use as a linker molecule in bioconjugation techniques and material science.
• Academic & Industrial R&D: Employed in chemical libraries and for method development in synthetic organic chemistry laboratories worldwide.

Basic Information

Product Name	5-Isoxazolepropanoic Acid
CAS No.	98140-73-9
Molecular Formula	C6H7NO3
Molecular Weight	141.12 g/mol
Synonyms	3-(Isoxazol-5-yl)propanoic Acid; 5-Isoxazolepropionic Acid; 3-(1,2-Oxazol-5-yl)propanoic Acid; β-(5-Isoxazolyl)propionic Acid; 98140-73-9; 5-Isoxazolylpropanoic Acid
EINECS	Contact for details

Quality Control

Our 5-Isoxazolepropanoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting standards for research and industrial use. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under dry conditions to maintain stability.

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	≤ 1.0%
Residue on Ignition	≤ 0.1%

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