Description

5,9-Dimethyl-3-Oxabicyclo[4.3.0]Nonan-2-One is a specialized bicyclic lactone compound of significant interest in advanced organic synthesis. Its unique structural framework makes it a valuable versatile chiral building block and intermediate for creating complex molecular architectures. This product is essential for R&D and production chemists in the pharmaceutical, agrochemical, and fragrance industries, where precise stereochemistry and functional group manipulation are critical.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with complex polycyclic structures.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, leveraging its bicyclic scaffold for bioactive molecule design.
• Fragrance and Flavor Ingredient: Acts as a precursor for musk-like odorants and other specialty aroma chemicals due to its lactone functionality and specific stereochemistry.
• Organic Synthesis Building Block: Employed in academic and industrial research for constructing natural product analogs and exploring new chemical spaces in medicinal chemistry.
• Material Science Research: Investigated as a monomer or modifying agent for specialty polymers with targeted degradation profiles or specific physical properties.

Basic Information

Product Name	5,9-Dimethyl-3-Oxabicyclo[4.3.0]Nonan-2-One
CAS No.	21950-33-4
Molecular Formula	C10H16O2
Molecular Weight	168.23 g/mol
Synonyms	5,9-Dimethyl-3-oxabicyclo[4.3.0]nonan-2-one; 3-Oxabicyclo[4.3.0]nonan-2-one, 5,9-dimethyl-; 5,9-Dimethyl-3-oxa-bicyclo[4.3.0]nonan-2-one; 5,9-Dimethyl-3-oxabicyclo[4.3.0]nonane-2-one; 2-Oxabicyclo[4.3.0]nonan-3-one, 5,9-dimethyl- (related isomer); Bicyclic γ-lactone; Dimethyl oxabicyclononanone
EINECS	Contact for details

Quality Control

Our 5,9-Dimethyl-3-Oxabicyclo[4.3.0]Nonan-2-One is produced under a strict quality management system. Every batch undergoes rigorous analytical testing including chromatography and spectroscopy to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at controlled room temperature (15-25°C). Due to its highly volatile nature, ensure containers are sealed when not in use and stored away from heat sources and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Specific Rotation	Contact for details
Residue on Ignition	≤ 0.1%

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