Description

(S)-4-(Acetyloxy)-2-pentanone, also known by its systematic name 2-Pentanone, 4-(Acetyloxy)-, (S)- (9Ci) with CAS NO 197897-78-2, is a chiral, high-purity chemical intermediate of significant interest in advanced organic synthesis. Its value lies in its defined stereochemistry and functional group combination, which enables precise control over the stereochemical outcome of reactions. This compound is primarily needed by research institutions and pharmaceutical companies engaged in the development of active pharmaceutical ingredients (APIs), chiral catalysts, and other fine chemicals where optical purity is critical.

Application

• Chiral Intermediate in Pharmaceutical Synthesis: Serves as a key building block for the production of enantiomerically pure drugs and active pharmaceutical ingredients (APIs).
• Asymmetric Catalyst and Ligand Development: Used in research to synthesize novel chiral ligands and organocatalysts for asymmetric transformations.
• Advanced Material Research: Employed in the synthesis of specialty polymers and liquid crystals where chirality influences material properties.
• Flavor and Fragrance Industry: Potential use in the synthesis of chiral aroma chemicals and flavoring agents.
• Agrochemical Research: Acts as an intermediate in the development of enantioselective pesticides and herbicides.
• Academic and R&D Laboratories: A valuable reagent for methodological studies in organic chemistry and stereochemistry.

Basic Information

Product Name	(S)-4-(Acetyloxy)-2-pentanone
CAS No.	197897-78-2
Molecular Formula	C7H12O3
Molecular Weight	144.17 g/mol
Synonyms	2-Pentanone, 4-(Acetyloxy)-, (S)- (9CI); (S)-4-Acetoxy-2-pentanone; (S)-4-Acetyloxy-2-pentanone; (S)-1-Acetoxy-3-butanone; (S)-3-Oxobutyl acetate; (S)-4-Hydroxy-2-pentanone acetate; (S)-Acetylated 4-hydroxy-2-pentanone; (3S)-3-Oxobutyl ethanoate
EINECS	Contact for details

Quality Control

Our (S)-4-(Acetyloxy)-2-pentanone is produced under strict quality management systems to ensure batch-to-batch consistency and high optical purity. Each lot undergoes comprehensive analytical testing, including chiral HPLC for enantiomeric excess (ee) determination, NMR, and GC-MS for identity and purity verification. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We adhere to cGMP principles for pharmaceutical intermediates, ensuring traceability and documentation for regulated applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). The compound may be moisture-sensitive; keep the container tightly sealed when not in use. Store away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Specific Rotation	Contact for details

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