Description

Cyclopropanecarboxylic Acid, 2-Acetyl-3-Methyl-, Ethyl Ester, (1Alpha,2Alpha,3Beta)- (9Ci) is a specialized chiral cyclopropane derivative, a high-value synthetic intermediate prized for its unique three-membered ring structure and stereochemistry. This compound is critical for advanced organic synthesis, enabling the construction of complex molecules with precise spatial orientation. It is primarily sought by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral building block for the research and synthesis of novel drug candidates, particularly in areas requiring stereochemical control.
• Agrochemical Synthesis: Used in the development of advanced pesticides and herbicides where the cyclopropane moiety confers specific biological activity.
• Fine Chemical Production: Serves as a precursor in the manufacture of complex fragrances, flavors, and other specialty chemicals.
• Academic & Industrial Research: A valuable reagent for methodological studies in organic chemistry, asymmetric synthesis, and catalysis.
• Material Science Research: Potential monomer or precursor for developing polymers with unique properties derived from the strained cyclopropane ring.

Basic Information

Item	Detail
Product Name	Cyclopropanecarboxylic Acid, 2-Acetyl-3-Methyl-, Ethyl Ester, (1Alpha,2Alpha,3Beta)- (9Ci)
CAS No.	189628-52-2
Molecular Formula	C9H14O3
Molecular Weight	170.21 g/mol
Synonyms	(1α,2α,3β)-2-Acetyl-3-methylcyclopropanecarboxylic acid ethyl ester; Ethyl (1α,2α,3β)-2-acetyl-3-methylcyclopropanecarboxylate; 2-Acetyl-3-methylcyclopropanecarboxylic acid ethyl ester, (1Alpha,2Alpha,3Beta)-; Ethyl 2-acetyl-3-methylcyclopropanecarboxylate (stereospecific); (1R,2R,3S)-2-Acetyl-3-methylcyclopropanecarboxylic acid ethyl ester; Cyclopropanecarboxylic acid, 2-acetyl-3-methyl-, ethyl ester, (1R,2R,3S)-; CAS 189628-52-2
EINECS	Contact for details

Quality Control

Every batch of our Cyclopropanecarboxylic Acid, 2-Acetyl-3-Methyl-, Ethyl Ester, (1Alpha,2Alpha,3Beta)- (9Ci) is produced and analyzed under strict quality management protocols to ensure high purity, consistent stereochemical integrity, and batch-to-batch reproducibility. Our products undergo rigorous quality testing, including chiral purity analysis, to meet the stringent requirements of advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profile is provided with each shipment.

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). Keep away from strong bases and incompatible organic solvents. 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
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% de
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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