Description

Methylenecyclopropene CAS NO 4095-06-1 is a highly reactive, strained-ring hydrocarbon building block of significant interest in advanced organic synthesis. Its unique structure, featuring a cyclopropene ring fused with an exocyclic methylene group, makes it a valuable precursor for constructing complex molecular architectures. This specialty chemical is primarily utilized by researchers and process chemists in the pharmaceutical, agrochemical, and materials science industries for developing novel compounds and polymers.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for creating strained-ring systems.
• Agrochemical Synthesis: Used in the design and synthesis of new herbicide and pesticide candidates with unique modes of action.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for developing specialty polymers with tailored thermal or mechanical properties.
• Organic Synthesis Building Block: Employed in [2+2] and other cycloaddition reactions, as well as ring-opening polymerizations, to access complex carbocyclic and heterocyclic structures.
• Ligand & Catalyst Development: Utilized in organometallic chemistry for synthesizing novel ligands and catalyst frameworks.
• Academic & Industrial R&D: A critical reagent for fundamental research in reactive intermediate chemistry and reaction mechanism studies.

Basic Information

Product Name	Methylenecyclopropene
CAS No.	4095-06-1
Molecular Formula	C4H4
Molecular Weight	52.07 g/mol
Synonyms	3-Methylenecyclopropene; 1,2,3-Cyclopropatriene; Methylenecycloprop-1-ene; 3-Methylene-1-cyclopropene; Cyclopropa-1,2,3-triene; 1-Cyclopropene-3-methylene
EINECS	Contact for details

Quality Control

Our Methylenecyclopropene is produced and handled under strict quality protocols. Each batch undergoes comprehensive analytical testing, including GC, GC-MS, and NMR, to confirm identity and purity. A detailed Certificate of Analysis (COA) is provided with every shipment, ensuring full traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Due to its reactive nature and propensity to be easily oxidized, this material should be stored under an inert atmosphere (argon or nitrogen) at recommended temperatures between 2°C and 8°C. Keep the container in a cool, dry, well-ventilated place away from incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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