Description

(5R)-2-Methyl-5-(5-Methyl-1-Methylene-4-Hexenyl)-2-Cyclohexen-1-One is a high-purity, optically active terpenoid ketone valued for its specific stereochemistry and functional group profile. This compound is critical for applications requiring precise molecular architecture and consistent chemical behavior. It serves as a valuable intermediate and building block in the research and development of fine chemicals, fragrances, and advanced materials for the pharmaceutical and flavor & fragrance industries.

Application

• Fragrance & Flavor Intermediate: A key chiral building block for the synthesis of complex, high-value aroma chemicals and natural product analogs.
• Pharmaceutical Research: Used as a specialized synthon in the development of novel active pharmaceutical ingredients (APIs) and bioactive molecules.
• Organic Synthesis: Serves as a versatile starting material or intermediate in stereoselective synthesis and total synthesis projects.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals requiring a defined enantiomeric form.
• Agrochemical Research: Potential intermediate in the development of advanced, targeted crop protection agents.
• Academic & Industrial R&D: A reference standard and reagent for chemical research exploring terpenoid chemistry and catalysis.

Basic Information

Product Name	(5R)-2-Methyl-5-(5-Methyl-1-Methylene-4-Hexenyl)-2-Cyclohexen-1-One
CAS No.	5988-72-7
Molecular Formula	C15H22O
Molecular Weight	218.33 g/mol
Synonyms	(5R)-2-Methyl-5-(5-methyl-1-methylene-4-hexenyl)-2-cyclohexen-1-one; (R)-2-Methyl-5-(5-methyl-1-methylene-4-hexenyl)-2-cyclohexenone; (5R)-2-Methyl-5-(5-methyl-1-methylenehex-4-enyl)cyclohex-2-en-1-one; (+)-2-Methyl-5-(5-methyl-1-methylene-4-hexenyl)-2-cyclohexen-1-one; (R)-(-)-2-Methyl-5-(5-methyl-1-methylene-4-hexenyl)-2-cyclohexenone; Dehydro-α-ionone (enantiomer); A chiral isomer of Dehydroionone.
EINECS	Contact for details

Quality Control

Our (5R)-2-Methyl-5-(5-Methyl-1-Methylene-4-Hexenyl)-2-Cyclohexen-1-One is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC and GC, to ensure high enantiomeric excess and chemical purity suitable for research and industrial applications. Certificates of Analysis (COA) with detailed specifications are provided to guarantee traceability, consistency, and compliance with your project requirements.

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). This material is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Chiral Purity (HPLC)	≥ 98.0% ee (5R)
Refractive Index (n20/D)	1.500 - 1.510
Specific Rotation ([α]D20)	Contact for details

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