Description

(3E,5Z)-6,10-Dimethyl-3,5,9-Undecatrien-2-One CAS NO 13927-47-4 is a high-purity, unsaturated ketone known for its distinctive chemical structure and utility as a key intermediate in fine chemical synthesis. This compound is valued for its role in constructing complex molecular frameworks, particularly in the fragrance and flavor industry where specific stereochemistry is crucial. It serves as an essential building block for research and production chemists in pharmaceutical development, aroma chemical manufacturing, and advanced material science.

Application

• Fragrance and Flavor Intermediate: A critical precursor for synthesizing specific terpenoid and ionone-like aroma molecules, contributing to woody, floral, or fruity notes.
• Pharmaceutical Research: Used as a chiral building block in the synthesis of complex natural products and potential active pharmaceutical ingredients (APIs).
• Organic Synthesis: Serves as a versatile dienophile or Michael acceptor in Diels-Alder and other cycloaddition reactions for constructing cyclic compounds.
• Agrochemical Synthesis: An intermediate in the development of advanced crop protection agents and pheromones.
• Material Science: Investigated for use in the synthesis of organic semiconductors and photoactive polymers due to its conjugated system.
• Chemical Research & Development: A valuable reference standard and starting material for methodological studies in stereoselective synthesis.

Basic Information

Product Name	(3E,5Z)-6,10-Dimethyl-3,5,9-Undecatrien-2-One
CAS No.	13927-47-4
Molecular Formula	C13H20O
Molecular Weight	192.30 g/mol
Synonyms	Pseudoionone; (E,Z)-Pseudoionone; 6,10-Dimethyl-3,5,9-undecatrien-2-one; (3E,5Z)-Pseudoionone; ψ-Ionone; (3E,5Z)-6,10-Dimethylundeca-3,5,9-trien-2-one; Geranylacetone isomer; All-trans-Geranylacetone (related isomer)
EINECS	237-704-0

Quality Control

Every batch of (3E,5Z)-6,10-Dimethyl-3,5,9-Undecatrien-2-One is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards, and identity, purity, and isomer ratio are verified using advanced analytical techniques including GC, HPLC, and NMR. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This material is easily oxidized and should be handled under an inert atmosphere (e.g., nitrogen) for long-term storage or after opening to maintain purity and prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Isomer Ratio (E,Z / others)	≥ 90:10 (by GC)
Refractive Index (20°C)	1.498 - 1.508
Specific Gravity (20/20°C)	0.885 - 0.905

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