Description

[(1R)-1-[(1R,3S,7R)-3-Methyl-8-Methylidene-9-Oxo-10-Oxabicyclo[5.3.0]Dec-4-En-4-Yl]-3-Oxo-Butyl] Acetate CAS NO 26791-72-0 is a high-purity, specialized organic compound featuring a complex bicyclic structure with ketone and acetate functional groups. This molecule is of significant commercial interest as a key chiral intermediate or building block in advanced organic synthesis. It is primarily sought after by research and development teams in the pharmaceutical and fine chemical industries for the production of novel active pharmaceutical ingredients (APIs) and complex natural product analogs.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral building block in the multi-step synthesis of proprietary drug candidates, particularly in therapeutic areas requiring complex stereochemistry.
• Fine Chemical Synthesis: Used as a precursor for synthesizing specialty chemicals, fragrances, and flavor compounds where its specific stereochemistry imparts desired biological or sensory activity.
• Academic & Contract Research: Employed in university and CRO (Contract Research Organization) laboratories for methodological development in asymmetric synthesis and total synthesis projects.
• Agrochemical Research: Potential intermediate in the development of new, high-specificity agrochemicals such as herbicides or plant growth regulators.

Basic Information

Product Name	[(1R)-1-[(1R,3S,7R)-3-Methyl-8-Methylidene-9-Oxo-10-Oxabicyclo[5.3.0]Dec-4-En-4-Yl]-3-Oxo-Butyl] Acetate
CAS No.	26791-72-0
Molecular Formula	C17H22O5
Molecular Weight	306.35 g/mol
Synonyms	(1R,1'R,3S,7R)-3'-Methyl-8'-methylidene-9'-oxo-10'-oxaspiro[oxirane-2,4'-bicyclo[5.3.0]dec-4'-en]-3-yl acetate; Acetic acid (1R)-1-[(1R,3S,7R)-3-methyl-8-methylidene-9-oxo-10-oxabicyclo[5.3.0]dec-4-en-4-yl]-3-oxobutyl ester; 10-Oxabicyclo[5.3.0]dec-4-ene-9-one derivative; Chiral bicyclic keto acetate intermediate; 26791-72-0; Light-sensitive acetate intermediate.
EINECS	Contact for details

Quality Control

Our production of [(1R)-1-[(1R,3S,7R)-3-Methyl-8-Methylidene-9-Oxo-10-Oxabicyclo[5.3.0]Dec-4-En-4-Yl]-3-Oxo-Butyl] Acetate adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity assessment by HPLC, to ensure high chemical and isomeric purity suitable for sensitive synthetic applications. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to guarantee traceability and batch-to-batch consistency.

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). Keep the container tightly sealed when not in use to prevent moisture absorption or contamination. For long-term storage, consider inert gas purging.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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