Description

Oxacycloundeca-4,9-Dien-2-One, 5,9-Dimethyl-, (4E,9E)- is a high-purity macrocyclic lactone compound of significant interest in advanced organic synthesis. Its unique structural framework makes it a valuable intermediate for the development of complex fragrance molecules, pharmaceutical actives, and specialty polymers. This product is essential for R&D chemists and production specialists in the fine chemical, fragrance, and life science industries seeking reliable, high-quality building blocks for innovative applications.

Application

• Fragrance & Flavor Intermediate: Serves as a key precursor in the synthesis of complex musk and floral scent compounds.
• Pharmaceutical Research: Used as a sophisticated scaffold or intermediate in the development of novel active pharmaceutical ingredients (APIs).
• Organic Synthesis: Acts as a versatile macrocyclic building block for constructing complex natural product analogs and specialty chemicals.
• Material Science: Potential monomer or modifier in the research of specialty polymers with unique olfactory or degradation properties.
• Agrochemical Development: Investigated as an intermediate for novel bioactive compounds in crop protection research.

Basic Information

Product Name	Oxacycloundeca-4,9-Dien-2-One, 5,9-Dimethyl-, (4E,9E)-
CAS No.	111351-08-7
Molecular Formula	C13H20O2
Molecular Weight	208.30 g/mol
Synonyms	(4E,9E)-5,9-Dimethyloxacycloundeca-4,9-dien-2-one; 5,9-Dimethyl-4,9-oxacycloundecadien-2-one; Globalide (precursor/related); 12-Oxa-5,9-dimethylcyclotetradeca-4,9-dien-1-one; Macrocyclic Lactone Intermediate; Unsaturated Macrolactone; Exaltolide derivative. Contact for additional trade names.
EINECS	Contact for details

Quality Control

Every batch of Oxacycloundeca-4,9-Dien-2-One, 5,9-Dimethyl-, (4E,9E)- is produced and tested under strict quality management protocols to ensure consistent purity and isomer specification. Our products undergo rigorous analytical testing, including HPLC, GC, and NMR, to verify identity and meet precise customer requirements. A comprehensive Certificate of Analysis (COA) detailing purity, isomer ratio, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents and bases. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC/GC)	≥ 95.0% (Typical 97-99%)
Isomer Ratio (4E,9E)	≥ 98% of total
Water Content (KF)	≤ 0.5%

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