Description

(2S,4Aα)-2β,5,5,8Aβ-Tetramethyl-2-Vinyloctahydro-2H-1-Benzopyran CAS NO 20303-73-5 is a high-purity, synthetic terpenoid derivative characterized by its specific stereochemistry and vinyl functional group. This compound is valued for its role as a versatile chiral intermediate and building block in advanced organic synthesis. It is primarily sought by research and development teams in the pharmaceutical, fragrance, and fine chemical industries for creating complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for terpene-based therapeutics.
• Fragrance & Flavor Synthesis: Used as a building block for creating sophisticated, natural-identical aroma chemicals and specialty odorants due to its complex terpenoid backbone.
• Organic Synthesis Research: Acts as a valuable starting material or intermediate in academic and industrial laboratories for methodological studies in stereoselective synthesis.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, including catalysts, ligands, and other performance materials requiring precise stereochemical control.
• Agrochemical Research: Investigated as a potential intermediate for developing new crop protection agents with specific biological activity.

Basic Information

Product Name	(2S,4Aα)-2β,5,5,8Aβ-Tetramethyl-2-Vinyloctahydro-2H-1-Benzopyran
CAS No.	20303-73-5
Molecular Formula	C15H26O
Molecular Weight	222.37 g/mol
Synonyms	2-Vinyl-2,5,5,8a-tetramethyloctahydro-2H-1-benzopyran; (2S,4aα)-2β,5,5,8aβ-Tetramethyl-2-vinyl-decahydro-2H-1-benzopyran; 2-Vinyl-2,5,5,8a-tetramethyl-decahydrochromene; Terpenoid Chromane Derivative; Chromene, 2-ethenyloctahydro-2,5,5,8a-tetramethyl-, (2S,4aR,8aR)-rel-; (rel-(2S,4aR,8aR))-2-Ethenyloctahydro-2,5,5,8a-tetramethyl-4H-1-benzopyran
EINECS	Contact for details

Quality Control

Our (2S,4Aα)-2β,5,5,8Aβ-Tetramethyl-2-Vinyloctahydro-2H-1-Benzopyran is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment, to ensure compliance with research and commercial grade specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical applications.

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. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Chiral Purity (Chiral GC/HPLC)	≥ 98.0% de
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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