Description

Cyclopropanecarboxylic Acid, 1-Formyl-2-Methyl-, Ethyl Ester (9Ci) is a specialized organic ester featuring a cyclopropane ring, a formyl group, and a methyl substituent, making it a valuable chiral building block and intermediate in advanced synthetic chemistry. This compound matters for its role in constructing complex molecular architectures, particularly in the development of active pharmaceutical ingredients and agrochemicals where its unique steric and electronic properties are leveraged. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for synthesizing novel compounds and scaling up production processes.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of novel drug candidates, particularly in medicinal chemistry research targeting central nervous system (CNS) and anti-infective agents.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the cyclopropane moiety can contribute to biological activity and stability.
• Fine Chemical Manufacturing: Serves as a versatile building block for creating complex flavors, fragrances, and other high-value specialty chemicals.
• Academic & Industrial R&D: Employed in methodological development and asymmetric synthesis studies due to its defined stereochemistry and functional groups.
• Material Science Precursor: Potential use in the synthesis of monomers or ligands for advanced polymeric materials and catalysts.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 1-Formyl-2-Methyl-, Ethyl Ester (9Ci)
CAS No.	260261-27-6
Molecular Formula	C8H12O3
Molecular Weight	156.18 g/mol
Synonyms	Ethyl 1-Formyl-2-methylcyclopropanecarboxylate; 1-Formyl-2-methylcyclopropanecarboxylic Acid Ethyl Ester; 2-Methyl-1-formylcyclopropanecarboxylic Acid Ethyl Ester; Ethyl (1-Formyl-2-methylcyclopropyl)carboxylate; 260261-27-6; 9CI Identifier Compound
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 1-Formyl-2-Methyl-, Ethyl Ester (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopic methods, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results are provided with every shipment. We support compliance with REACH and other global regulatory frameworks as required.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere such as nitrogen or argon. Keep away from heat, sparks, open flames, and incompatible materials.

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.