Description

2-Oxepanone,4-(1-Methylethyl)-,(4R)-(9Ci) is a chiral lactone derivative, specifically the (R)-enantiomer of 4-isopropyl-ε-caprolactone. This compound matters as a versatile chiral building block and intermediate in advanced organic synthesis, offering a defined stereocenter for constructing complex molecules with high enantiomeric purity. It is needed by research and development chemists in the pharmaceutical and fine chemical industries for applications such as asymmetric synthesis, polymer science, and the development of active pharmaceutical ingredients (APIs).

Application

• Chiral Intermediate in Pharmaceutical Synthesis: Serves as a key starting material or intermediate for the production of enantiomerically pure drugs and bioactive molecules.
• Monomer for Specialty Polymers: Used in the ring-opening polymerization (ROP) to create chiral or functionalized polyesters with tailored properties for biomedical and high-performance materials.
• Asymmetric Catalysis and Ligand Synthesis: Employed in the development of novel chiral catalysts and ligands for stereoselective transformations.
• Fragrance and Flavor Chemistry: Acts as a precursor for the synthesis of complex, stereodefined odorants and flavor compounds.
• Academic and Industrial R&D: Utilized in research laboratories for methodological studies in organic chemistry and the exploration of new synthetic pathways.
• Agrochemical Intermediate: Potential use in the synthesis of chiral active ingredients for crop protection products.

Basic Information

Item	Details
Product Name	2-Oxepanone,4-(1-Methylethyl)-,(4R)-(9Ci)
CAS No.	655234-03-0
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	(R)-4-Isopropyl-ε-caprolactone; (4R)-4-(1-Methylethyl)oxepan-2-one; (R)-4-Isopropyloxepan-2-one; (R)-4-Isopropyl-2-oxepanone; (R)-4-Isopropylcaprolactone; (R)-4-(Propan-2-yl)oxan-2-one; (R)-4-Isopropyl-6-hexanolide; (R)-4-(1-Methylethyl)-2-oxepanone
EINECS	Contact for details

Quality Control

Our 2-Oxepanone,4-(1-Methylethyl)-,(4R)-(9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC or GC, to ensure high enantiomeric excess (ee) and chemical purity. Certificates of Analysis (COA) detailing identity, assay, chiral purity, and impurity profiles are available upon request.

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). This material is moisture-sensitive; keep the container tightly sealed under an inert atmosphere if specified.

Specification

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