Description

Cyclopropanecarboxylic Acid, 2-Ethyl-1-[(Methoxycarbonyl)Amino]-, Methyl Ester (9Ci) is a specialized organic compound featuring a cyclopropane ring and a carbamate ester functional group, making it a valuable synthetic intermediate. Its unique structure is critical for constructing complex molecules in advanced pharmaceutical and agrochemical research. This high-purity building block is essential for medicinal chemists and process development scientists working on novel active ingredients.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting central nervous system (CNS) disorders or metabolic diseases.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, where the cyclopropane moiety can impart specific biological activity.
• Chemical Research & Development: Serves as a versatile precursor in organic synthesis for constructing complex, stereochemically defined molecular architectures in academic and industrial R&D labs.
• Fine Chemical Production: Employed in the multi-step synthesis of specialty chemicals, flavors, and fragrances requiring high-purity intermediates.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-Ethyl-1-[(Methoxycarbonyl)Amino]-, Methyl Ester (9Ci)
CAS No.	343942-90-5
Molecular Formula	C9H15NO4
Molecular Weight	201.22 g/mol
Synonyms	Methyl 2-ethyl-1-[(methoxycarbonyl)amino]cyclopropanecarboxylate; 1-(Methoxycarbonylamino)-2-ethylcyclopropanecarboxylic Acid Methyl Ester; 2-Ethyl-1-[(methoxycarbonyl)amino]cyclopropanecarboxylic Acid Methyl Ester; 1-Carbamoyl-2-ethylcyclopropanecarboxylic Acid Methyl Ester, Methyl N-[(1-Ethyl-2-methoxycarbonylcyclopropyl)carbonyl]carbamate; Cyclopropanecarboxylic acid, 1-[(methoxycarbonyl)amino]-2-ethyl-, methyl ester
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 2-Ethyl-1-[(Methoxycarbonyl)Amino]-, Methyl Ester (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and structural integrity suitable for sensitive synthetic applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0% Any single impurity ≤ 1.0%

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