Description

(E)-Oaklactone, (Trans)-3-Methyloctanoicacid-γ-Lactone, (+)-trans-Whiskeylactone, 5-Butyldihydro-4-Methyl-2(3H)-Furanone is a premium flavor and fragrance lactone known for its distinctive woody, coconut, and sweet aroma with whiskey-like nuances. This high-purity compound is essential for creating sophisticated, authentic flavor profiles and complex olfactory experiences in premium consumer products. It is a critical ingredient for flavorists and perfumers in the food & beverage, fragrance, and cosmetic industries seeking to enhance product differentiation and consumer appeal.

Application

• Flavor Creation: A key component in formulating flavors for alcoholic beverages (especially whiskey, rum, and brandy), dairy products, baked goods, and confectionery to impart creamy, coconut, and woody notes.
• Fragrance & Perfumery: Used as a heart or base note in fine fragrances, personal care products, and home care items to add depth, warmth, and a natural woody-amber character.
• Food & Beverage Enhancement: Employed as a flavor enhancer in premium spirits, flavored coffees, and nutraceutical products to improve mouthfeel and overall sensory profile.
• Cosmetic & Personal Care: Incorporated into scented lotions, soaps, and hair care products for its stable and appealing fragrance.
• Aroma Chemicals & Synergy: Serves as a building block in aroma chemical synthesis and is used to create synergistic effects in complex flavor and fragrance blends.
• Tobacco Flavoring: Utilized in the tobacco industry to add desirable sweet and woody notes to tobacco products.

Basic Information

Product Name	(E)-Oaklactone,(Trans)-3-Methyloctanoicacid-γ-Lactone,(+)-trans-Whiskeylactone,5-Butyldihydro-4-Methyl-2(3H)-Furanone
CAS No.	39638-67-0
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	(+)-trans-Whiskey Lactone; (E)-Whiskey Lactone; trans-3-Methyl-4-octanolide; (3S,4R)-3-Methyl-4-octanolide; trans-β-Methyl-γ-octalactone; Oak Lactone; cis/trans-Whiskey Lactone; Coconut Lactone; 5-Butyl-4-methyldihydrofuran-2(3H)-one
EINECS	Contact for details

Quality Control

Our (E)-Oaklactone is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing including GC, HPLC, and chiral analysis to confirm identity, purity, and isomeric composition. We provide full traceability and Certificates of Analysis (COA) with each shipment, and our quality systems support compliance with relevant FEMA, FCC, and IFRA guidelines for food and fragrance use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Isomeric Purity (trans-)	≥ 99.0%
Optical Purity ([α]D)	Contact for details
Refractive Index (20°C)	1.440 - 1.450
Specific Gravity (20°C)	0.950 - 0.980
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.