Description

Methyl 4-(4-Chlorophenyl)Isoxazole-5-Carboxylate CAS NO 1072944-87-6 is a high-purity, synthetically valuable heterocyclic building block. This compound is a key intermediate in the research and development of novel active pharmaceutical ingredients (APIs) and agrochemicals. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of potential drug candidates, particularly those targeting central nervous system (CNS) disorders and inflammatory diseases.
• Agrochemical Research: Serves as a core scaffold for developing new herbicides, fungicides, and insecticides with optimized activity profiles.
• Chemical Biology Probe Development: Used to create tool compounds for studying biological pathways and target validation in early-stage drug discovery.
• Material Science Research: Investigated as a monomer or additive for creating specialized polymers with unique thermal or optical properties.
• Academic & Contract Research: Employed in university and CRO laboratories for methodological studies in organic synthesis and heterocyclic chemistry.

Basic Information

Product Name	Methyl 4-(4-Chlorophenyl)Isoxazole-5-Carboxylate
CAS No.	1072944-87-6
Molecular Formula	C11H8ClNO3
Molecular Weight	237.64 g/mol
Synonyms	Methyl 4-(p-chlorophenyl)isoxazole-5-carboxylate; 5-Carbomethoxy-4-(4-chlorophenyl)isoxazole; 4-(4-Chlorophenyl)-5-(methoxycarbonyl)isoxazole; Methyl 4-(4'-chlorophenyl)isoxazole-5-carboxylate; 4-(4-Chlorophenyl)isoxazole-5-carboxylic acid methyl ester; 1072944-87-6; 4-(4-Chlorophenyl)-1,2-oxazole-5-carboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our Methyl 4-(4-Chlorophenyl)Isoxazole-5-Carboxylate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storage under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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