Description

Cyclopentanone, 3-(3-Butenyl)-2-Methylene- (9Ci) is a specialized, high-purity organic building block featuring a reactive methylene group adjacent to the ketone and a terminal alkene side chain. This unique bifunctional structure makes it a versatile intermediate for synthesizing complex molecules in advanced research and fine chemical production. It is primarily sought by pharmaceutical R&D and agrochemical laboratories for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon for constructing complex heterocyclic and carbocyclic frameworks in drug discovery programs.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, leveraging its reactive sites for structural diversification.
• Flavor & Fragrance Chemistry: Acts as a precursor for synthesizing specific musk or woody odorant molecules due to its cyclopentanone backbone.
• Material Science Research: Employed in the development of specialty polymers, resins, or organic electronic materials where its functional groups can be polymerized or modified.
• Organic Synthesis Building Block: Utilized in academic and industrial R&D for Diels-Alder reactions, Michael additions, and other carbon-carbon bond-forming strategies.

Basic Information

Product Name	Cyclopentanone, 3-(3-Butenyl)-2-Methylene- (9Ci)
CAS No.	290346-68-8
Molecular Formula	C10H14O
Molecular Weight	150.22 g/mol
Synonyms	3-(3-Butenyl)-2-methylidenecyclopentan-1-one; 2-Methylene-3-(3-butenyl)cyclopentanone; 3-(3-Buten-1-yl)-2-methylidenecyclopentanone; 2-Methylene-3-(but-3-en-1-yl)cyclopentanone; 3-(But-3-en-1-yl)-2-methylidenecyclopentanone; 2-Methylene-3-(3-butenyl)-1-cyclopentanone
EINECS	Contact for details

Quality Control

We supply Cyclopentanone, 3-(3-Butenyl)-2-Methylene- (9Ci) in high-purity grades suitable for research and development. Our products undergo rigorous quality testing using advanced analytical techniques (GC, HPLC, NMR) to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing batch-specific results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain purity.

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.