Description

Cyclobutanecarboxylic Acid, 1-Ethyl-, Ethyl Ester (9Ci) is a specialized organic ester compound, identified by CAS NO 783305-70-4, valued for its unique cyclobutane ring structure which imparts specific steric and electronic properties. This makes it a crucial advanced intermediate in the synthesis of complex molecules, particularly within pharmaceutical and agrochemical research. It is primarily sought by R&D chemists and process development scientists in the fine chemical and active pharmaceutical ingredient (API) manufacturing sectors.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, especially those targeting central nervous system (CNS) disorders or requiring constrained ring systems for bioactivity.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where the cyclobutane moiety can enhance stability and target specificity.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands in asymmetric catalysis and organometallic chemistry.
• Material Science Research: Employed in the development of specialty polymers and advanced organic materials with tailored thermal or mechanical properties.
• Flavor & Fragrance Chemistry: Potential use as an intermediate for synthesizing unique ester-based aroma compounds.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic synthesis and ring-strain chemistry.

Basic Information

Product Name	Cyclobutanecarboxylic Acid, 1-Ethyl-, Ethyl Ester (9Ci)
CAS No.	783305-70-4
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	Ethyl 1-Ethylcyclobutanecarboxylate; 1-Ethylcyclobutanecarboxylic Acid Ethyl Ester; Ethyl 1-Ethylcyclobutanecarboxylate (9CI); Cyclobutanecarboxylic acid, 1-ethyl-, ethyl ester; Ethyl 1-ethylcyclobutane-1-carboxylate
EINECS	Contact for details

Quality Control

Our Cyclobutanecarboxylic Acid, 1-Ethyl-, Ethyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC/HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) detailing purity, physical properties, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong bases and oxidizing agents. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and concentration changes. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	Contact for details
Density (g/mL at 20°C)	Contact for details

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