Description

β-Oxo-Cyclopropanepropanoic Acid 1,1-Dimethylethyl Ester is a high-value, specialized organic ester building block used in advanced chemical synthesis. This compound is critical for researchers and manufacturers requiring a reactive cyclopropane derivative for constructing complex molecular architectures. It is primarily utilized in the pharmaceutical, agrochemical, and fine chemical industries for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and production of active pharmaceutical ingredients (APIs), particularly those containing cyclopropane rings known for their metabolic stability and conformational rigidity.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and insecticides where the cyclopropane moiety can enhance biological activity and environmental profile.
• Fine Chemical Production: Serves as a versatile precursor for synthesizing flavors, fragrances, and other specialty chemicals requiring specific stereochemistry.
• Material Science Research: Employed in the synthesis of novel polymers and advanced organic materials with tailored properties.
• Academic & R&D: An essential reagent for methodological development in organic chemistry, including cycloaddition reactions and ring-opening polymerizations.

Basic Information

Product Name	β-Oxo-Cyclopropanepropanoic Acid 1,1-Dimethylethyl Ester
CAS No.	134302-07-1
Molecular Formula	C11H16O3
Molecular Weight	196.24 g/mol
Synonyms	tert-Butyl 3-(2-oxocyclopropyl)propanoate; 3-(2-Oxocyclopropyl)propanoic Acid tert-Butyl Ester; 1,1-Dimethylethyl 3-(2-oxocyclopropyl)propanoate; 2-Oxocyclopropanepropanoic Acid tert-Butyl Ester; tert-Butyl 3-(2-oxocyclopropyl)propionate; Cyclopropanepropanoic Acid, 2-oxo-, 1,1-Dimethylethyl Ester
EINECS	Contact for details

Quality Control

Our β-Oxo-Cyclopropanepropanoic Acid 1,1-Dimethylethyl Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) with full traceability are provided for every shipment, confirming compliance with customer specifications and relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flames. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.