Description

3-Isoxazolecarbonyl Chloride, 5-Cyclopropyl- (9Ci) is a specialized heterocyclic acid chloride building block, identified by CAS NO 53064-58-7. This compound is a critical intermediate for synthesizing novel molecules with potential biological activity, offering a reactive handle for amide bond formation. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical industries for creating new active ingredients and exploring structure-activity relationships.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting new therapeutic agents.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging the isoxazole moiety for bioactivity.
• Chemical Synthesis: Serves as a versatile reagent for introducing the 5-cyclopropylisoxazole-3-carboxamide group into more complex molecular architectures.
• Material Science: Potential precursor for specialty polymers or ligands in catalytic systems, given its functional group reactivity.
• Academic & Contract Research: Essential for fundamental organic chemistry research and custom synthesis projects in CROs (Contract Research Organizations).

Basic Information

Product Name	3-Isoxazolecarbonyl Chloride, 5-Cyclopropyl- (9Ci)
CAS No.	53064-58-7
Molecular Formula	C7H6ClNO2
Molecular Weight	171.58 g/mol
Synonyms	5-Cyclopropylisoxazole-3-carbonyl chloride; 5-Cyclopropyl-1,2-oxazole-3-carbonyl chloride; 5-Cyclopropyl-3-isoxazolecarbonyl chloride; 5-Cyclopropylisoxazole-3-carboxylic acid chloride; Cyclopropanecarboxylic acid, 3-isoxazolyl-; 3-Carboxy-5-cyclopropylisoxazole chloride; 5-Cyclopropyl-3-carboxyisoxazole chloride
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for our fine chemical intermediates. Production follows current Good Manufacturing Practices (cGMP) where applicable, and every batch is analyzed to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your R&D and scale-up activities.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic (moisture-sensitive) nature and reactivity as an acid chloride, it should be kept under an inert atmosphere (e.g., nitrogen or argon) for long-term storage and handled with appropriate precautions to exclude moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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