Description

4-Cyclopentyl-3-Oxo-Butyric Acid Ethyl Ester is a high-purity β-keto ester building block of significant importance in advanced organic synthesis. Its structure makes it a versatile precursor for constructing complex molecular frameworks, particularly in pharmaceutical and agrochemical research. This compound is essential for chemists and manufacturers engaged in the development of active pharmaceutical ingredients (APIs), fine chemicals, and specialty materials, where precise molecular architecture is critical.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides.
• Fine Chemical Production: Serves as a crucial building block for creating specialty chemicals and flavors/fragrances.
• Academic & Industrial Research: Employed in organic chemistry research for method development and novel compound synthesis.
• Material Science: Potential precursor in the development of specialty polymers and advanced organic materials.

Basic Information

Item	Detail
Product Name	4-Cyclopentyl-3-Oxo-Butyric Acid Ethyl Ester
CAS No.	68104-99-4
Molecular Formula	C11H18O3
Molecular Weight	198.26 g/mol
Synonyms	Ethyl 4-Cyclopentyl-3-oxobutanoate; Ethyl 4-Cyclopentylacetoacetate; 3-Oxobutanoic Acid, 4-Cyclopentyl-, Ethyl Ester; 4-Cyclopentylacetoacetic Acid Ethyl Ester; Butyric Acid, 4-cyclopentyl-3-oxo-, ethyl ester
EINECS	Contact for details

Quality Control

Our 4-Cyclopentyl-3-Oxo-Butyric Acid Ethyl Ester is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Purity (GC Area %)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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