Description

(-)-Thujopsen CAS NO 470-40-6 is a naturally occurring sesquiterpene, a key chiral constituent of cedarwood oil, prized for its distinct woody and amber-like aroma. This compound matters for its role as a high-value fragrance intermediate and a versatile chiral building block in organic synthesis. Industries that need it include flavor and fragrance manufacturers, fine chemical producers, and research institutions developing novel bioactive compounds or specialty materials.

Application

• Fragrance & Flavor Industry: A key ingredient in premium perfumery for creating sophisticated woody, amber, and oriental accords in fine fragrances, cosmetics, and personal care products.
• Fine Chemical Synthesis: Serves as a valuable chiral starting material or intermediate for the synthesis of complex natural products, pharmaceuticals, and agrochemicals.
• Aromatherapy & Wellness: Used in essential oil blends and aromatherapy products for its grounding, woody scent profile.
• Academic & Industrial Research: Employed in chemical research for studying terpene chemistry, chiral catalysis, and the development of new synthetic methodologies.
• Specialty Materials: Potential applications in the development of specialty polymers or coatings where its unique structure imparts specific properties.

Basic Information

Item	Detail
Product Name	(-)-Thujopsen
CAS No.	470-40-6
Molecular Formula	C15H24
Molecular Weight	204.35 g/mol
Synonyms	(-)-Thujopsene; (1S,4aR,8aS)-1-Isopropyl-4,7-dimethyl-1,2,3,4,4a,5,6,8a-octahydronaphthalene; 1(10)-Thujopsene; α-Thujopsene; Cedrene camphor; Widdrene
EINECS	207-425-7

Quality Control

Our (-)-Thujopsen is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chiral purity assessment by GC or HPLC, to ensure it meets the high standards required for fragrance and synthetic applications. Certificates of Analysis (COA) detailing identity, purity, and specific impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) to minimize oxidation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Chiral Purity (GC)	≥ 98.0% (-)-enantiomer
Refractive Index (20°C)	1.498 - 1.508
Specific Gravity (20/4°C)	0.925 - 0.945

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