Description

2-(But-3-En-1-Yl)-5-Methylcyclopentanone is a specialized organic compound belonging to the class of substituted cyclopentanones, characterized by its unsaturated side chain. This unique structure makes it a valuable versatile intermediate for the synthesis of complex molecules in fine chemical and pharmaceutical research. It is primarily sought by R&D chemists and process development teams in the flavor & fragrance, pharmaceutical, and agrochemical industries for constructing novel molecular architectures.

Application

• Flavor and Fragrance (F&F) Ingredient Synthesis: Serves as a key building block for creating novel musk-like odorants, woody, and amber notes due to its cyclopentanone core and olefinic functionality.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs), particularly for constructing complex carbocyclic and heterocyclic frameworks.
• Agrochemical Synthesis: Acts as a precursor in the development of new pesticides and herbicides, leveraging its reactive ketone and alkene groups for further chemical modifications.
• Organic Synthesis & Chemical Research: A valuable reagent for academic and industrial research in methodologies like cycloadditions, conjugate additions, and carbonyl chemistry.
• Perfumery Compound Development: Employed in the creation of specialty aroma chemicals for high-end perfumery applications.

Basic Information

Product Name	2-(But-3-En-1-Yl)-5-Methylcyclopentanone
CAS No.	38382-17-1
Molecular Formula	C10H16O
Molecular Weight	152.23 g/mol
Synonyms	5-Methyl-2-(3-butenyl)cyclopentanone; 2-(3-Butenyl)-5-methylcyclopentanone; 5-Methyl-2-(but-3-en-1-yl)cyclopentanone; (5-Methyl-2-cyclopentenyl)acetone (related); 3-Butenyl-5-methylcyclopentanone
EINECS	Contact for details

Quality Control

Our 2-(But-3-En-1-Yl)-5-Methylcyclopentanone is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing to ensure high purity and consistent performance as a chemical intermediate. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality systems are designed to support cGMP and ISO standards for reliable supply to regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place at controlled room temperature (15-25°C). Due to its properties of being easily oxidized and highly volatile, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term stability and keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (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.