Description

Cyclopropanecarboxylic Acid, 2-Ethenyl-, Methyl Ester, (1S-Trans)- (9Ci) is a high-purity, chiral cyclopropane derivative, a crucial building block in advanced organic synthesis. Its unique strained-ring structure and defined stereochemistry make it an invaluable intermediate for creating complex molecules with specific biological activity. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, where it serves as a key precursor for active ingredients and novel chemical entities.

Application

• Pharmaceutical Intermediate: A critical 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 production of advanced pesticides and herbicides, where the cyclopropane moiety contributes to biological efficacy and environmental stability.
• Ligand and Catalyst Development: Serves as a precursor for chiral ligands and organocatalysts used in asymmetric synthesis to control stereoselectivity.
• Material Science Research: Employed in the development of specialty polymers and advanced materials that require rigid, three-dimensional molecular frameworks.
• Flavor and Fragrance Industry: Acts as an intermediate for synthesizing complex aroma chemicals with unique olfactory properties.
• Academic and R&D Laboratories: A valuable reagent for methodological studies in organic chemistry, including cyclopropanation reactions and stereochemistry research.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-Ethenyl-, Methyl Ester, (1S-Trans)- (9Ci)
CAS No.	77210-36-7
Molecular Formula	C7H10O2
Molecular Weight	126.15 g/mol
Synonyms	(1S-trans)-2-Ethenylcyclopropanecarboxylic acid methyl ester; Methyl (1S,2S)-2-vinylcyclopropanecarboxylate; (1S,2S)-2-Vinylcyclopropanecarboxylic acid methyl ester; trans-Methyl 2-vinylcyclopropanecarboxylate; Chiral methyl 2-vinylcyclopropanecarboxylate; (1S,2S)-Methyl 2-vinylcyclopropanecarboxylate; Cyclopropanecarboxylic acid, 2-ethenyl-, methyl ester, (1S-trans)-; Methyl (1S,2S)-2-ethenylcyclopropanecarboxylate
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 2-Ethenyl-, Methyl Ester, (1S-Trans)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC and GC, to ensure it meets the high standards required for advanced synthetic applications. Certificates of Analysis (COA) detailing identity, purity, enantiomeric excess, and impurity profiles are provided with every shipment to guarantee traceability and consistency for your critical R&D and scale-up processes.

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). Keep away from strong acids and incompatible materials such as strong oxidizing agents. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
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.