Description

2-Oxepanone,4-(1-Methylethyl)-,(4S)-(9Ci) is a chiral lactone derivative, specifically the (S)-enantiomer of 4-isopropyl-ε-caprolactone, identified by CAS number 655234-00-7. This compound serves as a valuable chiral building block and intermediate in advanced organic synthesis, prized for its defined stereochemistry. It is primarily needed by research and development teams in the pharmaceutical and fine chemical industries for applications such as asymmetric synthesis, polymer science, and the development of active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: A key chiral synthon in the asymmetric synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Fine Chemical Synthesis: Used as a building block for creating specialty chemicals, flavors, and fragrances requiring specific stereochemistry.
• Polymer Science: Acts as a monomer or co-monomer for the synthesis of specialized, biodegradable polyesters with tailored properties.
• Catalysis Research: Employed as a substrate or ligand precursor in the development and testing of novel asymmetric catalysts.
• Academic & Industrial R&D: Utilized in research laboratories for methodological studies in organic chemistry and stereoselective transformations.

Basic Information

Product Name	2-Oxepanone,4-(1-Methylethyl)-,(4S)-(9Ci)
CAS No.	655234-00-7
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	(S)-4-Isopropyl-ε-caprolactone; (4S)-4-(1-Methylethyl)oxepan-2-one; (S)-4-Isopropyloxepan-2-one; (S)-4-Isopropyl-2-oxepanone; (S)-4-Isopropylcaprolactone; (S)-4-(Propan-2-yl)oxan-2-one; (4S)-4-Isopropyl-2-oxepanone; (S)-4-(1-Methylethyl)-2-oxepanone
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request, detailing key parameters such as chiral purity, chemical purity, and impurity profiles. We adhere to strict quality management protocols to ensure batch-to-batch consistency and reliability for your critical synthesis work.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This compound is compatible with strong acids and organic solvents; however, it should be stored separately from strong bases and oxidizing agents. Keep the container 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
Water Content (KF)	≤ 0.5%

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