Description

[1R,(-)]-3α-Isopropenyl-1,2β-Dimethylcyclopentane-1β-Ol CAS NO 4028-59-5 is a chiral, high-purity monoterpenoid alcohol characterized by its specific stereochemistry and functional groups. This compound is valued as a key chiral building block and intermediate in advanced organic synthesis, where its defined stereocenters are critical for producing enantiomerically pure target molecules. It is primarily needed by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and fine chemical sectors for applications such as asymmetric synthesis, fragrance development, and the preparation of complex natural product analogs.

Application

• As a chiral synthon and building block in the asymmetric synthesis of pharmaceutical intermediates.
• Utilized in the research and development of fragrance and flavor compounds, contributing to unique olfactory profiles.
• Serves as a precursor in the synthesis of complex natural product analogs and biologically active molecules.
• Acts as a key intermediate in agrochemical research for developing novel active ingredients.
• Employed in catalysis studies and the development of new synthetic methodologies.
• Used for the preparation of specialty fine chemicals and high-value chemical products.

Basic Information

Product Name	[1R,(-)]-3α-Isopropenyl-1,2β-Dimethylcyclopentane-1β-Ol
CAS No.	4028-59-5
Molecular Formula	C₁₀H₁₈O
Molecular Weight	154.25 g/mol
Synonyms	(-)-3α-Isopropenyl-1,2β-dimethylcyclopentane-1β-ol; (1R)-3α-Isopropenyl-1,2β-dimethylcyclopentane-1β-ol; (1R,2S,3R)-3-Isopropenyl-1,2-dimethylcyclopentanol; 1β-Hydroxy-3α-isopropenyl-1,2β-dimethylcyclopentane; Chiral monoterpenoid alcohol; Terpenoid synthon. Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of [1R,(-)]-3α-Isopropenyl-1,2β-Dimethylcyclopentane-1β-Ol adheres to stringent quality protocols to ensure batch-to-batch consistency and high chemical purity. Each lot undergoes comprehensive analytical testing, including chiral purity assessment by GC or HPLC, identity confirmation by IR and NMR, and quantification of key impurities. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). This compound is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Chiral Purity (Enantiomeric Excess)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%

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