Description

(E)-8-Undecene-2,5-Dione is a high-purity, unsaturated diketone compound with the CAS registry number 7051-46-9. This versatile chemical intermediate is valued for its unique α,β-unsaturated carbonyl structure, which makes it a valuable building block for complex organic synthesis. It is primarily sought after by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty fragrance industries for creating novel molecules and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of active pharmaceutical ingredients (APIs), particularly for molecules requiring specific unsaturated ketone motifs.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides, where its reactive structure allows for the introduction of specific functional groups.
• Flavor & Fragrance Ingredient: Acts as a precursor in the synthesis of complex aroma chemicals and specialty fragrance compounds, contributing to unique olfactory profiles.
• Organic Synthesis Building Block: Employed in academic and industrial research for Michael additions, cyclization reactions, and the construction of complex natural product analogs.
• Polymer & Material Science: Investigated as a monomer or cross-linking agent in the development of novel polymeric materials with specialized properties.
• Chemical Research (R&D): A valuable tool for methodology development and exploring new reaction pathways in synthetic organic chemistry laboratories.

Basic Information

Product Name	(E)-8-Undecene-2,5-Dione
CAS No.	7051-46-9
Molecular Formula	C₁₁H₁₈O₂
Molecular Weight	182.26 g/mol
Synonyms	(E)-8-Undecene-2,5-dione; 8-Undecene-2,5-dione, (E)-; trans-8-Undecene-2,5-dione; 2,5-Undecadien-4-one; 8-Undecene-2,5-dione; (E)-1,4-Diacetyl-1-heptene; 1-Heptene-1,4-dione, 1-acetyl- (E)-; 7051-46-9
EINECS	Contact for details

Quality Control

Every batch of (E)-8-Undecene-2,5-Dione is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the identity, purity, and consistency required for critical B2B applications. A Certificate of Analysis (COA) detailing specifications such as assay (by GC/HPLC), isomer purity, and impurity profiles is available for each lot and provided upon request.

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 bases, and sources of ignition. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
(E)-Isomer Purity	≥ 95.0%
Water Content (KF)	≤ 0.5%

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