Description

Ethanone, 1-[3-(1,1-Dimethylethyl)Cyclopentyl]-, cis- (9Ci) is a specialized ketone derivative featuring a sterically hindered tert-butylcyclopentyl structure, which imparts unique reactivity and stability. This compound serves as a high-value intermediate in advanced organic synthesis, particularly for the development of complex molecules with tailored properties. It is primarily required by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fragrance industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, especially those requiring rigid, lipophilic scaffolds.
• Agrochemical Synthesis: Used in the research and development of advanced pesticides and herbicides, leveraging its steric bulk to influence biological activity.
• Fragrance & Flavor Chemistry: Serves as a precursor for musk-like or woody odorants, where the tert-butylcyclopentyl moiety contributes to scent profile and longevity.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers with specific thermal or mechanical properties.
• Organic Synthesis Reagent: Employed in academic and industrial labs for methodological studies, such as asymmetric synthesis and catalysis, due to its defined stereochemistry.

Basic Information

Product Name	Ethanone, 1-[3-(1,1-Dimethylethyl)Cyclopentyl]-, cis- (9Ci)
CAS No.	145930-04-7
Molecular Formula	C11H20O
Molecular Weight	168.28 g/mol
Synonyms	1-(3-tert-Butylcyclopentyl)ethanone, cis-; cis-1-Acetyl-3-tert-butylcyclopentane; 3-tert-Butylcyclopentyl methyl ketone; 1-[3-(tert-Butyl)cyclopentyl]ethanone; 3-(1,1-Dimethylethyl)cyclopentanemethyl ketone; 145930-04-7; cis-3-tert-Butylcyclopentyl methyl ketone
EINECS	Contact for details

Quality Control

Our production of Ethanone, 1-[3-(1,1-Dimethylethyl)Cyclopentyl]-, cis- (9Ci) adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research and scale-up applications. All batches are fully characterized, and Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided. We support custom synthesis and can tailor specifications to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0% (Area %)
Isomeric Purity (cis-)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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