Description

Cyclopropanecarboxylic Acid, 1-Acetyl-2-Ethyl-, Methyl Ester (9Ci) is a specialized cyclopropane derivative ester, serving as a valuable synthetic intermediate in advanced organic chemistry. Its unique sterically constrained three-membered ring structure is crucial for constructing complex molecular architectures with specific biological or material properties. This high-purity building block is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality intermediates for R&D and scale-up.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting central nervous system (CNS) disorders or possessing complex stereochemistry.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, where the cyclopropane moiety can enhance biological activity and environmental stability.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands and organometallic catalysts used in asymmetric synthesis and cross-coupling reactions.
• Material Science Research: Employed in the synthesis of monomers or additives for advanced polymers, liquid crystals, or organic electronic materials.
• Chemical Biology Probes: Utilized to develop molecular probes and tool compounds for studying enzyme mechanisms and biological pathways.
• Flavor & Fragrance Chemistry: Potential intermediate for creating unique synthetic aroma chemicals with complex, nuanced olfactory profiles.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 1-Acetyl-2-Ethyl-, Methyl Ester (9Ci)
CAS No.	144465-34-9
Molecular Formula	C9H14O3
Molecular Weight	170.21 g/mol
Synonyms	Methyl 1-acetyl-2-ethylcyclopropanecarboxylate; 1-Acetyl-2-ethylcyclopropanecarboxylic acid methyl ester; Methyl 1-acetyl-2-ethyl-1-cyclopropanecarboxylate; 2-Ethyl-1-(acetyl)cyclopropanecarboxylic Acid Methyl Ester; Cyclopropanecarboxylic acid, 1-acetyl-2-ethyl-, methyl ester; 144465-34-9 (CAS); 1-Acetyl-2-ethylcyclopropanecarboxylate methyl ester
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 1-Acetyl-2-Ethyl-, Methyl Ester (9Ci) is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high chemical purity suitable for research and development. We provide comprehensive Certificates of Analysis (COA) with each batch, detailing identity, purity, and impurity profiles. Our quality systems are designed to meet the stringent requirements of cGMP and ISO standards for fine chemical intermediates.

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 storing under an inert atmosphere to maintain optimal purity.

Specification

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