Description

(E)-2-(3-Methylbutylidene)Cyclopentanone is a high-purity, unsaturated ketone characterized by its distinct woody, amber-like olfactory profile. This compound matters as a versatile and valuable fragrance intermediate, prized for its ability to impart complex, long-lasting notes in sophisticated perfume formulations. It is primarily needed by manufacturers in the flavors and fragrances (F&F) industry, as well as by research chemists developing novel aroma chemicals and functional materials.

Application

• Fragrance Compound: A key building block for creating woody, ambery, and musky accords in fine perfumery, personal care products, and home fragrances.
• Flavor Enhancer: Used in trace amounts to add depth and complexity to certain savory or roasted flavor profiles in specialty food applications.
• Chemical Intermediate: Serves as a precursor in the synthesis of more complex aroma molecules, pharmaceuticals, and agrochemicals due to its reactive α,β-unsaturated carbonyl structure.
• Research & Development: Utilized in academic and industrial R&D for studying cyclopentanone derivatives and developing new functional organic compounds.

Basic Information

Product Name	(E)-2-(3-Methylbutylidene)Cyclopentanone
CAS No.	40564-14-5
Molecular Formula	C₁₀H₁₆O
Molecular Weight	152.23 g/mol
Synonyms	2-[(3E)-3-Methyl-1-buten-1-yl]-2-cyclopenten-1-one; 2-(3-Methylbutylidene)cyclopentanone; (E)-2-(3-Methylbutylidene)cyclopentan-1-one; 2-Isopentylidenecyclopentanone; (E)-2-Isopentylidenecyclopentanone; 2-(3-Methylbut-1-en-1-yl)cyclopentanone; FEMA 3760; (E)-2-(3-Methylbutylidene)-1-cyclopentanone
EINECS	254-960-5

Quality Control

Our (E)-2-(3-Methylbutylidene)Cyclopentanone is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high chemical purity and isomeric consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to guarantee compliance with your specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0% (E-isomer)
Refractive Index (20°C)	1.478 - 1.488
Specific Gravity (20/20°C)	0.910 - 0.930

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