Description

Pentanoic Acid, 3-Methyl-4-Oxo-, Methyl Ester, (R)- (9Ci) is a high-purity chiral ester of significant interest in advanced organic synthesis. This compound serves as a critical chiral building block and intermediate for the production of complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is essential for research and development chemists and process engineers working on stereoselective synthesis, flavor and fragrance development, and the manufacture of active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: A key chiral synthon for the stereoselective synthesis of active pharmaceutical ingredients (APIs), especially those requiring specific (R)-configuration.
• Agrochemical Synthesis: Used in the research and production of advanced, optically active pesticides and herbicides.
• Flavor & Fragrance Ingredient: Acts as a precursor for creating specific, high-value aroma compounds and flavoring agents.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex molecular architectures in medicinal chemistry and material science.
• Catalyst & Ligand Development: Serves as a starting material for synthesizing novel chiral catalysts and ligands used in asymmetric catalysis.
• Fine Chemical Production: A valuable intermediate in the multi-step synthesis of other specialty and fine chemicals.

Basic Information

Product Name	Pentanoic Acid, 3-Methyl-4-Oxo-, Methyl Ester, (R)- (9Ci)
CAS No.	124686-28-8
Molecular Formula	C7H12O3
Molecular Weight	144.17 g/mol
Synonyms	(R)-3-Methyl-4-oxopentanoic acid methyl ester; Methyl (R)-3-methyl-4-oxopentanoate; (R)-Methyl 3-methyl-4-oxovalerate; (R)-4-Oxo-3-methylpentanoic acid methyl ester; (R)-β-Methyllevulinic acid methyl ester; (R)-Methyl β-methyllevulinate; (R)-3-Methyl-4-oxovaleric acid methyl ester
EINECS	Contact for details

Quality Control

Our Pentanoic Acid, 3-Methyl-4-Oxo-, Methyl Ester, (R)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure it meets the high standards required for synthetic applications. A Certificate of Analysis (COA) detailing identity, purity, and specific parameters is provided with every shipment.

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 heat, sparks, and open flame. The container should be kept tightly sealed to prevent moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee (R)
Water Content (KF)	≤ 0.5%

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