Description

3-(2-Chlorophenyl)-5-Methylisoxazole-4-Carbonyl Chloride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. Its core value lies in its role as a key building block for constructing complex heterocyclic molecules, enabling the development of novel active compounds. This product is critically needed by research and development chemists and process engineers in the pharmaceutical and agrochemical industries.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with isoxazole-based pharmacophores.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, leveraging its heterocyclic structure for biological activity.
• Chemical Research & Development: Serves as a versatile building block in medicinal chemistry for creating compound libraries and exploring new chemical entities.
• Material Science Applications: Potential use in the synthesis of specialty polymers or advanced organic materials requiring specific functional groups.
• Custom Synthesis Projects: Employed by contract research and manufacturing organizations (CROs/CMOs) for client-specific molecule construction.

Basic Information

Product Name	3-(2-Chlorophenyl)-5-Methylisoxazole-4-Carbonyl Chloride
CAS No.	25629-50-9
Molecular Formula	C11H7Cl2NO2
Molecular Weight	256.09 g/mol
Synonyms	4-Isoxazolecarbonyl chloride, 3-(2-chlorophenyl)-5-methyl-; 3-(2-Chlorophenyl)-5-methyl-4-isoxazolecarbonyl chloride; 5-Methyl-3-(2-chlorophenyl)isoxazole-4-carbonyl chloride; 2-Chloro-α,5-dimethyl-4-isoxazoleacetyl chloride (related); Isoxazole-4-carbonyl chloride derivative; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 3-(2-Chlorophenyl)-5-Methylisoxazole-4-Carbonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for pharmaceutical and agrochemical intermediates. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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