Description

2-Pentanone, 5-Hydroxy-4-Methyl-, (4R)- (9Ci) is a chiral, hydroxylated ketone derivative with significant synthetic utility. This compound matters as a versatile chiral building block and intermediate for the production of complex molecules in fine chemical and pharmaceutical synthesis. It is needed by research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for applications in asymmetric synthesis and the development of active ingredients. The CAS number for this compound is 345342-67-8.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of active pharmaceutical ingredients (APIs), particularly in routes requiring stereochemical control.
• Agrochemical Synthesis: Used in the research and production of advanced chiral pesticides and herbicides.
• Fine Chemical Production: Serves as a building block for fragrances, flavors, and other high-value specialty chemicals.
• Asymmetric Catalysis Research: Employed as a substrate or ligand precursor in the development of new catalytic methodologies.
• Academic & Industrial R&D: Utilized in chemical research for studying reaction mechanisms and developing novel synthetic pathways.
• Material Science Precursor: Potential intermediate in the synthesis of specialized polymers or functional materials.

Basic Information

Product Name	2-Pentanone, 5-Hydroxy-4-Methyl-, (4R)- (9Ci)
CAS No.	345342-67-8
Molecular Formula	C6H12O2
Molecular Weight	116.16 g/mol
Synonyms	(4R)-5-Hydroxy-4-methylpentan-2-one; (R)-5-Hydroxy-4-methyl-2-pentanone; 4-Methyl-5-hydroxy-2-pentanone, (4R)-; 2-Pentanone, 5-hydroxy-4-methyl-, (4R)-; (R)-4-Methyl-5-hydroxypentan-2-one
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. We employ advanced analytical techniques including HPLC, GC, and chiral analysis to verify identity, purity, and enantiomeric excess. Certificates of Analysis (COA) are available upon request, detailing batch-specific results for key parameters. Our quality management system supports the needs of cGMP and ISO-guided production for research and commercial-scale applications.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. For long-term storage, consider using an inert atmosphere to mitigate potential oxidation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC/GC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% ee
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.