Description

Cyclopropanecarboxylic Acid, 2,2-Diethoxy-, Ethyl Ester (9Ci) is a specialized organic ester compound that serves as a valuable synthetic intermediate in advanced chemical synthesis. Its unique structure, featuring a cyclopropane ring and acetal-protected carbonyl functionality, makes it a versatile building block for constructing complex molecular architectures. This high-purity intermediate is essential for research and development chemists in the pharmaceutical and agrochemical sectors, where it is used to introduce the sterically constrained and metabolically stable cyclopropane moiety into target molecules.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs) containing cyclopropane rings, which are prized for their conformational rigidity and potential to improve drug potency and metabolic stability.
• Agrochemical Synthesis: Used in the research and production of novel pesticides and herbicides, where the cyclopropane group can enhance biological activity and environmental persistence.
• Material Science Research: Employed in the development of specialty polymers and advanced organic materials that require specific, rigid molecular components.
• Organic Synthesis Reagent: Serves as a protected form of a cyclopropanecarboxylic acid derivative in multi-step synthetic routes, including cross-coupling reactions and nucleophilic substitutions.
• Chemical Reference Standard: Provides a high-purity standard for analytical method development, quality control, and regulatory submissions in industrial chemistry.

Basic Information

Item	Detail
Product Name	Cyclopropanecarboxylic Acid, 2,2-Diethoxy-, Ethyl Ester (9Ci)
CAS No.	97149-57-0
Molecular Formula	C10H18O4
Molecular Weight	202.25 g/mol
Synonyms	Ethyl 2,2-Diethoxycyclopropanecarboxylate; 2,2-Diethoxycyclopropanecarboxylic Acid Ethyl Ester; Cyclopropanecarboxylic Acid, 2,2-Diethoxy-, Ethyl Ester; Ethyl (2,2-Diethoxycyclopropyl)formate; 97149-57-0; Acetic acid, 2,2-diethoxycyclopropyl-, ethyl ester
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 2,2-Diethoxy-, Ethyl Ester (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopy (NMR, IR), to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring GMP-grade intermediates for pharmaceutical development.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its sensitivity to strong acids and organic solvents, store separately from incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/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.