Description

1-Methyl-2-Methylenecyclopropane is a highly reactive and versatile strained-ring hydrocarbon building block. Its unique cyclopropane structure with an exocyclic methylene group makes it a valuable intermediate for synthesizing complex organic frameworks and specialty polymers. This compound is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for applications requiring precise molecular architecture.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the construction of novel drug candidates, particularly those containing cyclopropane motifs known for metabolic stability.
• Agrochemical Synthesis: Used in the development of new active ingredients for crop protection, where the strained ring can impart unique biological activity.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for creating polymers with tailored thermal and mechanical properties.
• Organic Synthesis Research: A valuable reagent for studying cycloaddition reactions, ring-opening polymerizations, and other fundamental transformations in academic and industrial R&D.
• Fine Chemical Production: Employed in the multi-step synthesis of complex fragrances, flavors, and other high-value specialty chemicals.

Basic Information

Product Name	1-Methyl-2-Methylenecyclopropane
CAS No.	18631-84-0
Molecular Formula	C5H8
Molecular Weight	68.12 g/mol
Synonyms	1-Methyl-2-methylenecyclopropane; 2-Methylene-1-methylcyclopropane; Methylenecyclopropane, 1-methyl-; 1-Methyl-2-methylidenecyclopropane; 1-Methyl-2-methylene-cyclopropane; 2-Methyliden-1-methyl-cyclopropan; 1-Methyl-2-methylen-cyclopropan
EINECS	Contact for details

Quality Control

Our 1-Methyl-2-Methylenecyclopropane is produced under stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including GC and GC-MS analysis, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support cGMP and ISO 9001 standards for research and development materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile nature, containers must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen or argon) when not in use to prevent evaporation and potential degradation. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 95.0% (Typical 97-99%)
Water Content (KF)	≤ 0.5%

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