Description

(4As)-5,6,7,8-Tetrahydro-4,4Aβ-Dimethyl-6α-(1-Methylethenyl)Naphthalen-2(4Ah)-One is a high-purity, specialized organic intermediate with a complex, functionalized decalin core structure. This compound matters for its role as a versatile chiral building block in the synthesis of complex natural products and active pharmaceutical ingredients (APIs). It is primarily needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and fine chemical industries seeking to introduce specific stereochemistry and functionality into their target molecules.

Application

• Pharmaceutical Intermediate: A key chiral precursor in the synthesis of steroids, terpenoids, and other bioactive molecules with complex ring systems.
• Agrochemical Synthesis: Used in research and development for creating novel pesticides and herbicides with specific stereochemical requirements.
• Fine Chemical Production: Serves as a sophisticated building block for fragrances, flavors, and advanced material precursors.
• Academic & Contract Research: Employed in university and CRO laboratories for methodological studies in asymmetric synthesis and total synthesis projects.
• Process Chemistry Development: Investigated for scalable routes to complex targets, leveraging its defined stereocenters and olefin functionality.

Basic Information

Product Name	(4As)-5,6,7,8-Tetrahydro-4,4Aβ-Dimethyl-6α-(1-Methylethenyl)Naphthalen-2(4Ah)-One
CAS No.	26609-40-5
Molecular Formula	C₁₅H₂₂O
Molecular Weight	218.33 g/mol
Synonyms	2(4aH)-Naphthalenone, 5,6,7,8-tetrahydro-4,4aβ-dimethyl-6α-(1-methylethenyl)-, (4aS,6aR)-; (4aS,6aR)-5,6,7,8-Tetrahydro-4,4aβ-dimethyl-6α-(1-methylethenyl)naphthalen-2(4aH)-one; (-)-α-Cyperone; α-Cyperone; (4aS,6aR)-4,4aβ-Dimethyl-6α-isopropenyl-4,4a,5,6,7,8-hexahydro-2(3H)-naphthalenone; (4aS,6aR)-4,4aβ-Dimethyl-6α-(1-methylethenyl)decahydro-2-naphthalenone
EINECS	Contact for details

Quality Control

Every batch of (4As)-5,6,7,8-Tetrahydro-4,4Aβ-Dimethyl-6α-(1-Methylethenyl)Naphthalen-2(4Ah)-One is produced and tested under a strict quality management system. We provide comprehensive analytical data including HPLC purity, chiral purity, and structural confirmation (NMR, IR, MS) to ensure the compound meets your research and development specifications. Certificates of Analysis (COA) are available for all shipments, and custom purity grades can be discussed to meet specific project requirements.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Melting Point	Contact for details
Loss on Drying	≤ 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.