Description

(E)-Whiskeylactone, 5-Butyldihydro-4-Methyl-2(3H)-Furanone, (+)-trans-Whiskeylactone is a high-purity, naturally-occurring lactone prized for its unique organoleptic properties. This compound is a key flavor and fragrance ingredient, delivering the characteristic woody, coconut, and sweet oaky notes essential for authentic sensory profiles. It is a critical raw material for flavorists and perfumers in the food & beverage, fragrance, and specialty chemical industries seeking to replicate or enhance complex natural aromas.

Application

• Flavor & Fragrance (F&F) Formulation: A primary building block for creating and enhancing flavors such as whiskey, bourbon, rum, coconut, and toasted oak in alcoholic and non-alcoholic beverages.
• Perfumery: Used as a heart or base note to impart woody, creamy, and sweet nuances in fine fragrances, personal care products, and home scents.
• Food & Beverage Industry: Employed in the flavoring of baked goods, confectionery, dairy products, and premium spirits to achieve authentic aged or roasted character.
• Tobacco Flavoring: Enhances the sensory profile of tobacco products by adding sweet, woody, and creamy notes.
• Aroma Chemicals & Synergy: Acts as a key component in aroma chemical blends, where it synergizes with other lactones, vanillin, and pyrazines to create complex flavor matrices.
• Research & Development: Serves as a reference standard and starting material in synthetic organic chemistry and sensory science research.

Basic Information

Product Name	(E)-Whiskeylactone, 5-Butyldihydro-4-Methyl-2(3H)-Furanone, (+)-trans-Whiskeylactone
CAS No.	80041-01-6
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	(+)-trans-Whiskey Lactone; (E)-6-Methyl-5-oxo-3-oxabicyclo[4.3.0]nonan-2-one; trans-5-Butyl-4-methyldihydrofuran-2(3H)-one; trans-5-Butyl-4-methyl-4,5-dihydro-2(3H)-furanone; trans-Methyl octalactone; Oak Lactone; trans-Whisky Lactone; (3aS,7aR)-Hexahydro-3a-methyl-1-benzofuran-2(3H)-one (related isomer)
EINECS	Contact for details

Quality Control

Our (E)-Whiskeylactone is produced and tested under a strict quality management system. Each batch is analyzed to ensure it meets the high-purity standards required by the flavor and fragrance industry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment. Our quality commitment aligns with ISO and GMP principles, and we can support compliance with relevant regulations such as FCC, FEMA GRAS, and REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is light-sensitive and easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen) to preserve stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Optical Rotation	Contact for details
Specific Gravity (20°C)	0.970 - 0.990
Refractive Index (20°C)	1.440 - 1.450
Related Substances (GC)	Total impurities ≤ 2.0%
Solubility	Soluble in alcohol and oils, insoluble in water

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