Description

Cyclopropanecarboxylic Acid, 2-Formyl-, Ethyl Ester, (1S-Trans)- (9Ci) is a high-purity, chiral cyclopropane derivative serving as a critical synthetic building block in advanced organic chemistry. Its unique stereochemistry and functional groups make it an invaluable precursor for constructing complex molecular architectures with precise spatial orientation. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it is used to develop novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of antiviral, anticancer, and central nervous system (CNS) drugs.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the cyclopropane ring contributes to biological activity and stability.
• Asymmetric Catalysis & Ligand Development: Serves as a precursor for chiral ligands and catalysts used in enantioselective synthesis to produce single-isomer compounds.
• Fine Chemical & Specialty Material Production: Employed in the manufacture of specialty polymers, liquid crystals, and other performance materials requiring specific stereochemical properties.
• Academic & Industrial R&D: A valuable reagent for method development and exploring new chemical spaces in medicinal chemistry and total synthesis projects.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-Formyl-, Ethyl Ester, (1S-Trans)- (9Ci)
CAS No.	109716-61-2
Molecular Formula	C7H10O3
Molecular Weight	142.15 g/mol
Synonyms	(1S,2S)-2-Formylcyclopropanecarboxylic acid ethyl ester; Ethyl (1S,2S)-2-formylcyclopropanecarboxylate; trans-2-Formylcyclopropanecarboxylic Acid Ethyl Ester; (1S-trans)-2-Formylcyclopropanecarboxylic Acid Ethyl Ester; (-)-trans-2-Formylcyclopropanecarboxylic Acid Ethyl Ester; Chiral Cyclopropane Aldehyde Ester; (1S,2S)-Ethyl 2-formylcyclopropanecarboxylate
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 2-Formyl-, Ethyl Ester, (1S-Trans)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure it meets the high standards required for pharmaceutical and advanced synthetic applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and enantiomeric excess.

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). The compound is moisture-sensitive; keep the container tightly sealed under an inert atmosphere to maintain stability and purity. Keep away from heat, sparks, and open flame.

Specification

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

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