Description

[4E,8Z,(+)]-2,6,6,9-Tetramethyl-4,8-Cycloundecadiene-1-One is a high-purity, chiral sesquiterpenoid ketone characterized by its specific stereochemistry. This compound matters as a valuable intermediate and building block in fine chemical synthesis, offering a defined molecular framework for creating complex molecules. It is needed by R&D chemists and manufacturers in the pharmaceutical, fragrance, and flavor industries for the development of novel active ingredients and specialty aroma chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key chiral precursor in the synthesis of novel therapeutic agents and active pharmaceutical ingredients (APIs).
• Fragrance & Flavor Synthesis: Used as a building block for creating complex, woody, and amber-like aroma molecules in high-end perfumery and flavor compositions.
• Organic Synthesis Research: Acts as a valuable starting material or intermediate in academic and industrial research for exploring new synthetic methodologies and natural product analogs.
• Agrochemical Development: Potential intermediate in the research and synthesis of new, targeted crop protection agents and pheromones.
• Fine Chemical Manufacturing: Employed in the production of specialty chemicals requiring a specific sesquiterpenoid backbone with defined stereochemistry.

Basic Information

Product Name	[4E,8Z,(+)]-2,6,6,9-Tetramethyl-4,8-Cycloundecadiene-1-One
CAS No.	24405-90-1
Molecular Formula	C₁₅H₂₄O
Molecular Weight	220.35 g/mol
Synonyms	(+)-α-Cyclogeranylideneacetone; (4E,8Z)-(+)-2,6,6,9-Tetramethyl-4,8-cycloundecadien-1-one; (4E,8Z)-2,6,6,9-Tetramethyl-4,8-cycloundecadien-1-one; (1R,4E,8Z)-1,2,6,6,9-Pentamethyl-4,8-cycloundecadien-1-one (related); α-Cyclogeranylideneacetone; Cycloundecadienone derivative; Sesquiterpenoid ketone
EINECS	Contact for details

Quality Control

Our [4E,8Z,(+)]-2,6,6,9-Tetramethyl-4,8-Cycloundecadiene-1-One is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high chemical purity, correct stereochemistry, and consistent performance. Certificates of Analysis (COA) detailing identity, purity (typically by GC or HPLC), and specific rotation are available upon request to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC/HPLC)	≥ 95.0% (Typical 97-99%)
Specific Rotation [α]₂₀D	Contact for details

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