Description

Cyclobutanecarboxylic Acid, 1-Methyl-3-Methylene-, Ethyl Ester (9Ci) is a specialized organic ester building block featuring a functionalized cyclobutane ring system. This compound matters as a versatile intermediate for synthesizing complex molecules in advanced pharmaceutical and agrochemical research. It is needed by R&D chemists and process development scientists in the fine chemical and life sciences industries for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in medicinal chemistry programs targeting new therapeutic agents.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and fungicides, leveraging its unique strained-ring structure.
• Organic Synthesis Reagent: Serves as a versatile precursor in organic chemistry for ring-opening, cycloaddition, and functional group transformation reactions.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing polymers with specific thermal or mechanical properties.
• Flavor & Fragrance Chemistry: Potential intermediate for creating complex ester-based aroma molecules in high-value specialty chemical applications.

Basic Information

Product Name	Cyclobutanecarboxylic Acid, 1-Methyl-3-Methylene-, Ethyl Ester (9Ci)
CAS No.	227607-41-2
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	Ethyl 1-Methyl-3-methylenecyclobutanecarboxylate; 1-Methyl-3-methylenecyclobutanecarboxylic Acid Ethyl Ester; Cyclobutanecarboxylic acid, 1-methyl-3-methylene-, ethyl ester; Ethyl 1-methyl-3-methylidenecyclobutane-1-carboxylate
EINECS	Contact for details

Quality Control

Our Cyclobutanecarboxylic Acid, 1-Methyl-3-Methylene-, Ethyl Ester (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 2-8°C for long-term stability. Keep container tightly sealed when not in use to prevent moisture absorption and volatilization.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
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.