Description

(+)-α-Vetispirene CAS NO 28908-28-3 is a high-purity, naturally derived sesquiterpene compound valued for its unique and complex woody, ambery, and vetiver-like olfactory profile. This enantiomerically pure material is essential for creating sophisticated, long-lasting fragrance accords and is a key intermediate in the synthesis of high-value aroma chemicals. It is primarily sought by flavor and fragrance houses, fine chemical manufacturers, and research institutions developing novel scent compositions and studying sesquiterpene chemistry.

Application

• Premium Fragrance Formulation: A key building block for high-end perfumes, imparting deep woody, earthy, and ambery notes characteristic of vetiver and patchouli accords.
• Aroma Chemical Synthesis: Serves as a critical chiral intermediate in the production of other valuable sesquiterpenoids and fragrance molecules.
• Flavor Enhancement: Used in trace amounts to add complexity and natural woody undertones to specialty flavor creations.
• Academic & Industrial Research: Employed as a standard or starting material in organic synthesis, phytochemical studies, and olfactory receptor research.
• Natural Product Isolation Standard: Used as a reference compound in the analysis and quality control of essential oils, particularly vetiver oil.
• Functional Fragrance: Incorporated into products where a stable, long-lasting natural woody scent is desired, such as in premium home care or personal care lines.

Basic Information

Product Name	(+)-α-Vetispirene
CAS No.	28908-28-3
Molecular Formula	C15H24
Molecular Weight	204.35 g/mol
Synonyms	(+)-α-Vetispirene; (1R,7S,10S)-4,11,11-Trimethyl-8-methylenebicyclo[7.2.0]undec-4-ene; Vetispirene; α-Vetispirene; Vetiver spiro compound; (+)-α-Vetispirene; Vetispiren; 1-Vetispirene
EINECS	Contact for details

Quality Control

Our (+)-α-Vetispirene is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity assessment by GC or HPLC, to ensure identity, strength, quality, and purity. A Certificate of Analysis (COA) detailing specific results for chiral purity, chemical identity, and related substances is provided with every shipment to guarantee traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is easily oxidized and light-sensitive; prolonged exposure to air or light should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to reference spectrum
Chiral Purity (GC/HPLC)	≥ 98.0% (by area)
Assay (GC)	≥ 95.0%
Related Substances (GC)	≤ 2.0% (total)
Optical Rotation [α]20/D	Contact for details
Refractive Index n20/D	Contact for details
Specific Gravity	Contact for details

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