Description

Ethanone, 1-[2-(2-Methyl-1-Propenyl)Cyclopropyl]-, (1S-Trans)- (9Ci) is a specialized chiral ketone featuring a unique cyclopropyl and isobutenyl side chain structure, making it a valuable advanced intermediate for complex organic synthesis. Its defined stereochemistry and reactive carbonyl group are critical for constructing molecules with precise three-dimensional architecture. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, particularly for synthesizing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key chiral building block for the synthesis of novel drug candidates, especially in central nervous system (CNS) and anti-infective therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, where its structural complexity can contribute to unique modes of action.
• Flavor & Fragrance Chemistry: Acts as a precursor for synthesizing complex, naturally-derived aroma molecules and specialty odorants.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing polymers with specific optical or mechanical properties.
• Academic & Industrial R&D: Employed in methodological studies and as a standard in asymmetric synthesis and catalysis research.

Basic Information

Product Name	Ethanone, 1-[2-(2-Methyl-1-Propenyl)Cyclopropyl]-, (1S-Trans)- (9Ci)
CAS No.	170552-91-7
Molecular Formula	C9H14O
Molecular Weight	138.21 g/mol
Synonyms	(1S-trans)-1-[2-(2-Methylprop-1-en-1-yl)cyclopropyl]ethan-1-one; (1S,2R)-1-Acetyl-2-(2-methyl-1-propenyl)cyclopropane; trans-1-Acetyl-2-(2-methyl-1-propenyl)cyclopropane; 1-[2-(2-Methyl-1-propenyl)cyclopropyl]ethanone (1S-trans)-; Chiral Cyclopropyl Ketone Intermediate; 170552-91-7
EINECS	Contact for details

Quality Control

Every batch of our Ethanone, 1-[2-(2-Methyl-1-Propenyl)Cyclopropyl]-, (1S-Trans)- (9Ci) is produced under strict quality management systems. We employ advanced analytical techniques including chiral HPLC, GC, and NMR to ensure high enantiomeric purity and chemical identity. Certificates of Analysis (COA) detailing purity, chiral excess, and impurity profiles are provided with each shipment to support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area. Recommended long-term storage temperature is 2-8°C. Allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 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.