Description

3-Cyclopropyl-5-Isoxazolecarboxylic Acid (Saltdata: Free) is a high-purity heterocyclic carboxylic acid building block of significant interest in advanced organic synthesis. Its unique isoxazole core fused with a cyclopropyl group makes it a valuable precursor for creating novel molecular architectures with targeted biological activity. This compound is primarily utilized by research and development teams in the pharmaceutical and agrochemical industries for the discovery and development of new active ingredients.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for central nervous system (CNS) and anti-infective therapies.
• Agrochemical Synthesis: Serves as a building block for novel herbicides, fungicides, and insecticides, leveraging the bioactive isoxazole moiety.
• Chemical Biology & Proteomics: Used in the design and synthesis of chemical probes and activity-based protein profiling (ABPP) reagents.
• Material Science Research: Investigated as a monomer or functional additive for creating polymers with specific thermal or optical properties.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for the production of bespoke compounds at various scales.

Basic Information

Product Name	3-Cyclopropyl-5-Isoxazolecarboxylic Acid (Saltdata: Free)
CAS No.	870704-25-9
Molecular Formula	C7H7NO3
Molecular Weight	153.14 g/mol
Synonyms	3-Cyclopropyl-1,2-oxazole-5-carboxylic acid; 5-Isoxazolecarboxylic acid, 3-cyclopropyl-; 3-Cyclopropylisoxazole-5-carboxylic Acid; Cyclopropanecarboxylic acid, 5-isoxazolyl-; 870704-25-9; 3-Cyclopropyl-5-carboxyisoxazole
EINECS	Contact for details

Quality Control

Our 3-Cyclopropyl-5-Isoxazolecarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via NMR and IR spectroscopy, to ensure it meets exacting standards for research and development use. A Certificate of Analysis (COA) detailing all test 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 a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (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.