Description

2-Butanone, 4-(2-Methylcyclopropyl)-, trans- (9Ci) is a specialized organic ketone compound featuring a unique methylcyclopropyl substituent, offering distinct steric and electronic properties for advanced chemical synthesis. This high-purity intermediate is valued for its role in constructing complex molecular architectures, particularly in pharmaceutical and agrochemical research. It serves as a critical building block for scientists and process chemists in fine chemical, fragrance, and advanced material development, where precise structural control is paramount.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of novel active pharmaceutical ingredients (APIs) and complex natural product analogs.
• Agrochemical Research: Used in the development of new-generation herbicides, fungicides, and insecticides with tailored biological activity.
• Flavor & Fragrance Chemistry: Serves as a precursor for creating unique musk-like or woody aroma compounds due to its cyclopropyl-containing structure.
• Material Science: Employed in the synthesis of specialized monomers for polymers with specific thermal or mechanical properties.
• Organic Synthesis Reagent: Utilized in stereoselective reactions, including cyclopropanation analogs and carbon-carbon bond-forming transformations.
• Chemical Research & Development: A valuable tool for methodological studies in asymmetric synthesis and catalyst development.

Basic Information

Product Name	2-Butanone, 4-(2-Methylcyclopropyl)-, trans- (9Ci)
CAS No.	98043-29-9
Molecular Formula	C8H14O
Molecular Weight	126.20 g/mol
Synonyms	trans-4-(2-Methylcyclopropyl)-2-butanone; 4-(2-Methylcyclopropyl)butan-2-one; (1R,2S)-rel-2-(1-Methylethyl)-1-methylcyclopropanemethanol (related alcohol precursor); 2-Butanone, 4-(2-methylcyclopropyl)-, (1R,2S)-rel-; Methyl (2-methylcyclopropyl) ethyl ketone
EINECS	Contact for details

Quality Control

Our 2-Butanone, 4-(2-Methylcyclopropyl)-, trans- (9Ci) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high chemical purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles as determined by GC, HPLC, and NMR. We support cGMP compliance for advanced intermediates and can provide material tailored to meet specific research or production-grade specifications.

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 under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0% (Area %)
Isomeric Purity (trans-)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Residue on Evaporation	≤ 0.1%

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