Description

Ethyl 5-Cyclopropyl-5-Oxovalerate is a high-purity organic ester compound, serving as a versatile and critical building block in advanced chemical synthesis. Its value lies in its unique cyclopropyl-keto-ester structure, which is essential for constructing complex molecular frameworks with specific biological or material properties. This intermediate is particularly needed by research and development teams, as well as production chemists, in the pharmaceutical, agrochemical, and specialty chemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those targeting central nervous system (CNS) disorders or possessing complex heterocyclic structures.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, where the cyclopropyl group can enhance metabolic stability and bioactivity.
• Organic Synthesis Building Block: Serves as a versatile reagent for cyclopropanation reactions, Michael additions, and the construction of γ-keto ester derivatives in research laboratories.
• Material Science Research: Potential monomer or modifier in the development of specialized polymers and coatings with tailored thermal or mechanical properties.
• Flavor & Fragrance Industry: Intermediate for the synthesis of complex ester-based aroma molecules, contributing to unique olfactory profiles.

Basic Information

Product Name	Ethyl 5-Cyclopropyl-5-Oxovalerate
CAS No.	898776-27-7
Molecular Formula	C10H16O3
Molecular Weight	184.23 g/mol
Synonyms	Ethyl 5-cyclopropyl-5-oxopentanoate; 5-Oxopentanoic acid, 5-cyclopropyl-, ethyl ester; 5-Cyclopropyl-5-oxopentanoic acid ethyl ester; Ethyl 5-cyclopropyl-5-oxovalerate; Ethyl 4-(cyclopropylcarbonyl)butanoate; Pentanoic acid, 5-cyclopropyl-5-oxo-, ethyl ester; Ethyl γ-keto-γ-cyclopropylbutyrate
EINECS	Contact for details

Quality Control

Our Ethyl 5-Cyclopropyl-5-Oxovalerate is produced under strict quality management systems to ensure batch-to-batch consistency and high purity for sensitive synthetic applications. Each lot undergoes comprehensive analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to confirm identity and purity. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality parameters. We support compliance with ISO and cGMP standards for advanced intermediate manufacturing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider using an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 3.0%

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