Description

Ketone, 4-Chloro-5-Methyl-3-Isoxazolyl Methyl (5Ci) is a specialized heterocyclic ketone building block with the CAS registry number 651355-11-2. This compound is valued for its unique isoxazole core, which is integral to synthesizing molecules with specific biological and material science functionalities. It is primarily sought by research and development chemists in the pharmaceutical and agrochemical industries for creating novel active ingredients and advanced intermediates.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of new drug candidates, particularly those targeting neurological or anti-infective pathways.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides, leveraging the bioactivity of the isoxazole moiety.
• Material Science Research: Serves as a precursor for developing novel polymers or organic electronic materials with tailored properties.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying enzyme function and biological pathways.
• Custom Synthesis & Contract Manufacturing: A critical starting material for fine chemical manufacturers offering bespoke synthesis services to global clients.

Basic Information

Product Name	Ketone, 4-Chloro-5-Methyl-3-Isoxazolyl Methyl (5Ci)
CAS No.	651355-11-2
Molecular Formula	C6H6ClNO2
Molecular Weight	159.57 g/mol
Synonyms	4-Chloro-5-methyl-3-isoxazolyl methyl ketone; (4-Chloro-5-methyl-1,2-oxazol-3-yl)methanone; 1-(4-Chloro-5-methyl-1,2-oxazol-3-yl)ethanone; 4-Chloro-5-methylisoxazole-3-carbaldehyde (common misnomer); 4-Chloro-5-methyl-3-acetylisoxazole; 3-Acetyl-4-chloro-5-methylisoxazole; 651355-11-2; 5Ci Labeled Ketone
EINECS	Contact for details

Quality Control

Every batch of Ketone, 4-Chloro-5-Methyl-3-Isoxazolyl Methyl (5Ci) is produced and tested under a strict quality management system. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.