Description

Ethyl (2E,4Z)-Undeca-2,4-Dienoate is a high-purity, unsaturated ester compound characterized by its specific (2E,4Z) geometric isomerism, which is critical for its organoleptic and synthetic properties. This compound serves as a valuable intermediate and flavor/fragrance ingredient, prized for its unique chemical structure that imparts specific sensory notes and reactivity. It is primarily utilized by manufacturers in the flavor & fragrance, pharmaceutical, and fine chemical synthesis industries seeking consistent quality and reliable supply for their formulations.

Application

• Flavor & Fragrance Industry: Used as a key intermediate or building block in the synthesis of complex aroma chemicals, contributing to fruity, green, or waxy olfactory profiles.
• Pharmaceutical Intermediates: Serves as a chiral synthon or precursor in the multi-step synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Fine Chemical Synthesis: Acts as a diene component in Diels-Alder reactions or other cycloadditions for constructing complex organic frameworks in research and development.
• Agrochemicals: Employed in the research and production of advanced crop protection agents and pheromones.
• Material Science: Investigated as a monomer or modifier in the development of specialized polymers with tailored properties.

Basic Information

Product Name	Ethyl (2E,4Z)-Undeca-2,4-Dienoate
CAS No.	39924-40-8
Molecular Formula	C₁₃H₂₂O₂
Molecular Weight	210.31 g/mol
Synonyms	Ethyl (2E,4Z)-2,4-Undecadienoate; (2E,4Z)-Ethyl Undeca-2,4-Dienoate; 2,4-Undecadienoic Acid, Ethyl Ester, (2E,4Z)-; Ethyl trans-2,cis-4-Undecadienoate; Ethyl 2-trans,4-cis-Undecadienoate; FEMA 4291; Flavis No. 09.713
EINECS	Contact for details

Quality Control

Our Ethyl (2E,4Z)-Undeca-2,4-Dienoate is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and isomer confirmation, to ensure it meets the high standards required for flavor, fragrance, and synthetic applications. Certificates of Analysis (COA) detailing identity, purity, and specific parameters 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 area at controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Isomeric Ratio (2E,4Z)	≥ 95.0% of total
Refractive Index (20°C)	1.460 - 1.470
Specific Gravity (20/20°C)	0.890 - 0.910

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