Description

Diethyl 5-Oxononanedioate is a high-purity diester compound with a central ketone functionality, serving as a versatile chemical intermediate. Its bifunctional structure makes it a valuable building block for synthesizing complex molecules in advanced research and industrial manufacturing. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a linear dicarboxylate backbone.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its keto-diester structure is incorporated into the final molecule.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for creating specialized polyesters and polyketones with tailored properties.
• Organic Synthesis Building Block: Employed in Michael additions, Claisen condensations, and other C-C bond forming reactions to construct complex organic frameworks in R&D laboratories.
• Flavor & Fragrance Industry: Potential intermediate for the synthesis of macrocyclic musk compounds and other fragrance ingredients.
• Coordination Chemistry: Acts as a ligand precursor for metal-organic frameworks (MOFs) and catalysts due to its multiple oxygen donor sites.

Basic Information

Product Name	Diethyl 5-Oxononanedioate
CAS No.	40833-04-3
Molecular Formula	C₁₃H₂₂O₅
Molecular Weight	258.31 g/mol
Synonyms	5-Oxononanedioic Acid Diethyl Ester; Diethyl 5-Oxopimelate; Diethyl 5-Ketononanedioate; 5-Ketopimelic Acid Diethyl Ester; Nonanedioic Acid, 5-Oxo-, Diethyl Ester; Ethyl 5-Oxononanedioate; 40833-04-3; 5-Oxopimelic Acid Diethyl Ester
EINECS	Contact for details

Quality Control

Our Diethyl 5-Oxononanedioate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container must be kept tightly closed to prevent moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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