Description

4-Cyclopropyl-4-Oxo-Butyric Acid Ethyl Ester is a versatile keto-ester building block characterized by its cyclopropyl and reactive carbonyl functionalities. This compound is highly valued in organic synthesis for its role as a key intermediate in constructing complex molecular architectures. It is primarily sought after by research institutions and industrial R&D departments in the pharmaceutical and agrochemical sectors for the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing cyclopropyl or γ-keto acid motifs.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides, leveraging its reactive ester and ketone groups.
• Organic Synthesis Building Block: Serves as a versatile starting material for cyclopropane ring-opening reactions, Grignard additions, and reductions to form chiral alcohols or acids.
• Material Science Research: Investigated as a monomer or cross-linking agent for the development of specialty polymers with unique thermal or mechanical properties.
• Flavor & Fragrance Intermediate: Potential use in the synthesis of complex ester-based aroma compounds, given its structural features.

Basic Information

Product Name	4-Cyclopropyl-4-Oxo-Butyric Acid Ethyl Ester
CAS No.	184297-33-4
Molecular Formula	C9H14O3
Molecular Weight	170.21 g/mol
Synonyms	Ethyl 4-cyclopropyl-4-oxobutanoate; 4-Oxo-4-cyclopropylbutanoic acid ethyl ester; Butanoic acid, 4-cyclopropyl-4-oxo-, ethyl ester; Ethyl 4-cyclopropyl-4-oxobutyrate; γ-Oxocyclopropanebutanoic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 4-Cyclopropyl-4-Oxo-Butyric Acid Ethyl Ester is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing specific batch results is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from incompatible materials such as strong bases and organic solvents. For long-term storage, consider maintaining under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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