Description

Cyclopropanecarboxylic Acid, 2-Cyano-2-Methyl-, Ethyl Ester, trans- (9Ci) is a high-purity, specialized organic ester building block featuring a cyclopropane ring and a nitrile functional group. This compound is valued for its unique steric and electronic properties, making it a critical intermediate in advanced synthetic chemistry. It is primarily sought by research and development teams in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and complex molecules.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of new drug candidates, particularly in medicinal chemistry programs.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the cyclopropane moiety can impart specific biological activity.
• Organic Synthesis Building Block: Serves as a versatile precursor for constructing complex molecular architectures in academic and industrial research laboratories.
• Material Science Research: Investigated as a monomer or additive for creating polymers with specialized thermal or mechanical properties.
• Fine Chemical Production: Employed in the multi-step synthesis of flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-Cyano-2-Methyl-, Ethyl Ester, trans- (9Ci)
CAS No.	73178-41-3
Molecular Formula	C8H11NO2
Molecular Weight	153.18 g/mol
Synonyms	trans-2-Cyano-2-methylcyclopropanecarboxylic acid ethyl ester; Ethyl (1R,2S)-2-Cyano-2-methylcyclopropanecarboxylate; Ethyl trans-2-Cyano-2-methylcyclopropanecarboxylate; 2-Methyl-2-cyano-cyclopropanecarboxylic acid ethyl ester; trans-Ethyl 2-cyano-2-methylcyclopropanecarboxylate; (1R,2S)-rel-2-Cyano-2-methylcyclopropanecarboxylic Acid Ethyl Ester
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 2-Cyano-2-Methyl-, Ethyl Ester, trans- (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including chiral purity analysis, to ensure it meets the high standards required for research and production. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee (trans-isomer)
Water Content (KF)	≤ 0.5%

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