Description

Methylenecyclobutane is a highly versatile, low molecular weight cyclic olefin with significant utility in advanced organic synthesis and materials research. Its unique strained ring structure makes it a valuable building block for creating complex molecular architectures and specialty polymers. This compound is particularly sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel compounds and high-performance polymers.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of novel active pharmaceutical ingredients (APIs), particularly for creating constrained ring systems.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides with unique modes of action.
• Polymer & Material Science: Acts as a monomer or co-monomer in ring-opening metathesis polymerization (ROMP) to produce specialty polymers with tailored thermal and mechanical properties.
• Organic Synthesis Reagent: A valuable reagent in Diels-Alder reactions, [2+2] cycloadditions, and other cyclization processes to construct complex carbocyclic and heterocyclic frameworks.
• Ligand & Catalyst Development: Employed in the synthesis of novel ligands and organometallic complexes for catalytic applications.
• Fragrance & Flavor Chemistry: Used as a precursor in the synthesis of specific musky or woody aroma chemicals.
• Academic & Industrial R&D: A fundamental compound for methodological studies in organic chemistry and materials science laboratories worldwide.

Basic Information

Product Name	Methylenecyclobutane
CAS No.	1120-56-5
Molecular Formula	C5H8
Molecular Weight	68.12 g/mol
Synonyms	3-Methylenecyclobutene; Cyclobutylidene methane; 1-Methylenecyclobutane; Methylene-cyclobutane; 3-Methylencyclobuten; Cyclobutane, methylene-; 1-Cyclobutene, 3-methylene-
EINECS	214-317-6

Quality Control

Our Methylenecyclobutane is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including Gas Chromatography (GC) and NMR spectroscopy to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and impurity profiles is provided with every shipment, ensuring full traceability and compliance with your internal quality standards.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile nature, store in a cool, well-ventilated place, preferably at 2-8°C or under refrigerated conditions as specified. Keep away from heat, sparks, open flames, and oxidizing agents. Containers should be kept tightly sealed when not in use to prevent evaporation and potential concentration of peroxides.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (Karl Fischer)	≤ 0.1%
Density (at 20°C)	~0.72 g/mL
Boiling Point	~39 - 41 °C

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