Description

α-(-)-Thujone is a naturally occurring monoterpene ketone and a key isomer of the thujone family. This compound is significant for its distinct biological activity and is a subject of interest in flavor, fragrance, and botanical extract research. It is primarily sought by manufacturers and R&D laboratories in the flavor & fragrance, phytochemical, and fine chemical synthesis industries.

Application

• Flavor & Fragrance Industry: Used as a component in creating complex aromatic profiles, particularly for imparting woody, herbaceous, or spicy notes in perfumes, colognes, and specialty flavorings.
• Phytochemical & Botanical Extracts: Serves as a reference standard or an active marker compound in the analysis and standardization of essential oils, such as those from sage, tansy, and wormwood.
• Research & Development: Employed as a key intermediate or starting material in organic synthesis for the development of novel fine chemicals and pharmaceutical candidates.
• Aromatherapy & Natural Products: Incorporated into specialized blends where its characteristic aroma is valued, subject to regional regulatory compliance regarding usage levels.

Basic Information

Product Name	α-(-)-Thujone
CAS No.	546-80-5
Molecular Formula	C10H16O
Molecular Weight	152.23 g/mol
Synonyms	(-)-α-Thujone; (1S,4R,5R)-4-Methyl-1-propan-2-ylbicyclo[3.1.0]hexan-3-one; L-α-Thujone; Thujone; α-Thujone; 3-Thujanone; Tanacetone
EINECS	208-912-9

Quality Control

Our α-(-)-Thujone is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets precise customer requirements and internal specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at controlled room temperature (15-25°C). Due to its highly volatile nature, keep containers tightly sealed when not in use and away from heat and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Optical Rotation	-15° to -25° (c=1 in ethanol)
Refractive Index	1.450 - 1.455 @ 20°C
Specific Gravity	0.910 - 0.920 @ 25°C

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