Description

tert-Butyl 4-oxopentanoate is a versatile and high-purity chemical intermediate, primarily valued for its role in the synthesis of complex organic molecules. Its structure, featuring a protected carboxylic acid group and a reactive ketone, makes it a crucial building block in pharmaceutical and fine chemical research and development. This compound is essential for chemists and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality intermediates for scalable synthesis.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a levulinic acid derivative framework.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for flavors, fragrances, and other specialty organic compounds.
• Polymer Chemistry: Acts as a monomer or modifying agent in the synthesis of specialized polymers and coatings.
• Organic Synthesis Research: Employed in academic and industrial R&D for constructing complex molecular architectures via reactions at the ketone or ester functionalities.
• Cross-coupling Reactions: Useful as a substrate in palladium-catalyzed and other metal-mediated coupling reactions to form carbon-carbon bonds.

Basic Information

Product Name	tert-Butyl 4-Oxopentanoate
CAS No.	2854-10-6
Molecular Formula	C9H16O3
Molecular Weight	172.22 g/mol
Synonyms	tert-Butyl levulinate; 4-Oxopentanoic acid tert-butyl ester; tert-Butyl 4-oxovalerate; Levulinic acid tert-butyl ester; Butyl 4-oxopentanoate; 2854-10-6; tert-Butyl β-acetylpropionate
EINECS	220-672-6

Quality Control

Our tert-Butyl 4-oxopentanoate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (HPLC, GC) and spectroscopic methods, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

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 bases, and sources of ignition.

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%

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