Description

Cyclobutanecarboxylic Acid, 2-Methylene-, Methyl Ester (9Ci) is a specialized, high-purity organic ester building block with a unique strained-ring structure. This compound is valued for its reactive methylene and ester functionalities, making it a versatile intermediate in advanced synthetic chemistry. It is primarily sought by research and development teams in the pharmaceutical and agrochemical sectors for constructing complex molecular architectures, including novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of novel drug candidates, particularly those containing cyclobutane or spirocyclic ring systems.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, leveraging its reactive sites for structural diversification.
• Fine Chemical Production: Serves as a building block for specialty chemicals, flavors, and fragrances requiring specific cyclic frameworks.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing polymers with unique thermal or mechanical properties.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic synthesis, including cycloaddition and ring-opening reactions.

Basic Information

Product Name	Cyclobutanecarboxylic Acid, 2-Methylene-, Methyl Ester (9Ci)
CAS No.	71092-56-3
Molecular Formula	C7H10O2
Molecular Weight	126.15 g/mol
Synonyms	Methyl 2-Methylenecyclobutanecarboxylate; 2-Methylenecyclobutanecarboxylic Acid Methyl Ester; Methyl 2-Methylene-1-cyclobutanecarboxylate; 2-Methylencyclobutan-1-carbonsäure-methylester; Methyl (2-methylen-1-cyclobutyl)carboxylate
EINECS	Contact for details

Quality Control

Our Cyclobutanecarboxylic Acid, 2-Methylene-, Methyl Ester (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopy (NMR, IR), to ensure high chemical purity and identity. Certificates of Analysis (COA) with detailed specifications are provided to guarantee consistency and support your R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong oxidizing agents and bases.

Specification

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

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