Description

(5E,9E)-5,9-Dimethyloxacycloundeca-5,9-Dien-2-One CAS NO 86578-98-5 is a high-purity macrocyclic lactone, a key structural motif in organic synthesis and fragrance chemistry. This compound matters as a versatile chiral building block and intermediate for creating complex molecules with specific olfactory or biological properties. It is primarily needed by research and development chemists in the fragrance, flavor, and pharmaceutical industries for the synthesis of novel musk analogs, bioactive natural product derivatives, and other fine chemicals.

Application

• Fragrance & Flavor Intermediate: Serves as a crucial precursor for the synthesis of novel macrocyclic musk compounds and other specialty aroma chemicals.
• Pharmaceutical Research: Acts as a chiral building block in the development of potential active pharmaceutical ingredients (APIs) and natural product analogs.
• Organic Synthesis: Used as a key intermediate in complex multi-step syntheses, particularly in ring-closing metathesis and other cyclization reactions.
• Material Science Research: Investigated as a monomer or precursor for specialized polymers and functional materials.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical method development and quality control in related chemical production.

Basic Information

Product Name	(5E,9E)-5,9-Dimethyloxacycloundeca-5,9-Dien-2-One
CAS No.	86578-98-5
Molecular Formula	C₁₃H₂₀O₂
Molecular Weight	208.30 g/mol
Synonyms	5,9-Dimethyloxacycloundeca-5,9-dien-2-one; (5E,9E)-5,9-Dimethyl-2-oxacycloundeca-5,9-dienone; Ambretone; (E,E)-Ambrettolide epoxide derivative; Macrocyclic lactone intermediate; Exaltone analog precursor
EINECS	Contact for details

Quality Control

Our (5E,9E)-5,9-Dimethyloxacycloundeca-5,9-Dien-2-One is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography (HPLC, GC) and spectroscopic methods (NMR, IR), to ensure high chemical purity and isomeric integrity. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to guarantee batch-to-batch consistency for your critical R&D and production needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Area %)
Isomeric Purity ((E,E)-isomer)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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