Description

Cyclopropanecarboxylic Acid, 2-Ethylidene-3-Methyl-, Methyl Ester, (1Alpha,2Z,3Alpha)- CAS NO 42418-99-5 is a high-purity, stereochemically defined cyclopropane derivative. This compound serves as a critical chiral building block and advanced intermediate in the synthesis of complex organic molecules. It is primarily sought after by research institutions and pharmaceutical companies for the development of novel active pharmaceutical ingredients (APIs) and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of new therapeutic agents, particularly for complex target molecules.
• Agrochemical Synthesis: Used in the creation of advanced, biologically active compounds for crop protection products.
• Organic Synthesis & Catalysis: Employed as a specialized building block in academic and industrial research for constructing cyclopropane-containing frameworks.
• Flavor & Fragrance Industry: Potential use in the synthesis of unique aroma chemicals due to its constrained cyclopropane structure.
• Material Science Research: Investigated as a monomer or precursor for novel polymers with specific steric and electronic properties.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-Ethylidene-3-Methyl-, Methyl Ester, (1Alpha,2Z,3Alpha)-
CAS No.	42418-99-5
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	(1α,2Z,3α)-2-Ethylidene-3-methylcyclopropanecarboxylic acid methyl ester; Methyl (1α,2Z,3α)-2-ethylidene-3-methylcyclopropanecarboxylate; (1R,2S,3R)-2-Ethylidene-3-methylcyclopropanecarboxylic acid methyl ester; Methyl (1R,2S,3R)-2-ethylidene-3-methylcyclopropanecarboxylate; 2-Ethylidene-3-methylcyclopropanecarboxylic acid methyl ester, (1Alpha,2Z,3Alpha)-; Cyclopropanecarboxylic acid, 2-ethylidene-3-methyl-, methyl ester, [1R-(1α,2Z,3α)]-
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 2-Ethylidene-3-Methyl-, Methyl Ester, (1Alpha,2Z,3Alpha)- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC and GC, to ensure high stereochemical and chemical purity for sensitive synthetic applications. Certificates of Analysis (COA) with detailed chromatographic data are provided with every shipment.

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 oxidizing agents and bases. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% de
Water Content (KF)	≤ 0.5%

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