Description

Pentanoic Acid, 2-Methyl-4-Oxo-, Methyl Ester, (2R)- (9Ci) is a high-purity chiral ester building block of significant interest in advanced organic synthesis. Its defined stereochemistry and functional groups make it a valuable intermediate for constructing complex molecules with precise spatial orientation. This compound is primarily sought by research and development teams in the pharmaceutical and fine chemical industries for applications in asymmetric synthesis and the development of active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for drugs targeting specific biological pathways.
• Asymmetric Synthesis: Utilized as a building block in stereoselective reactions to create enantiomerically pure compounds for agrochemicals and specialty chemicals.
• Fine Chemical Production: Serves as a precursor in the synthesis of complex fragrances, flavors, and other high-value specialty organic compounds.
• Academic & Industrial Research: Used in methodological studies and process chemistry development for new synthetic routes requiring chiral control.
• Ligand and Catalyst Development: Acts as a starting material for synthesizing chiral ligands and organocatalysts used in enantioselective transformations.

Basic Information

Product Name	Pentanoic Acid, 2-Methyl-4-Oxo-, Methyl Ester, (2R)- (9Ci)
CAS No.	338974-22-4
Molecular Formula	C7H12O3
Molecular Weight	144.17 g/mol
Synonyms	(2R)-2-Methyl-4-oxopentanoic acid methyl ester; Methyl (2R)-2-methyl-4-oxopentanoate; (R)-2-Methyl-4-oxopentanoic acid methyl ester; Methyl (R)-2-methyl-4-oxovalerate; Levulinic acid, 2-methyl-, methyl ester, (2R)-; (R)-Methyl 2-methyl-4-oxopentanoate; A chiral levulinate derivative
EINECS	Contact for details

Quality Control

Our production of Pentanoic Acid, 2-Methyl-4-Oxo-, Methyl Ester, (2R)- (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high enantiomeric purity. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing critical parameters such as chiral purity (enantiomeric excess), chemical purity, and identity confirmation. We are committed to meeting the exacting standards required for research and cGMP-grade pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Enantiomeric Purity (Chiral HPLC)	≥ 98.0% e.e.
Specific Rotation	Contact for details
Water Content (KF)	≤ 0.5%

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