Description

Cyclopropanecarboxylic Acid, 2-Methyl-3-Methylene-, Methyl Ester, trans- (9Ci) is a specialized organic ester featuring a cyclopropane ring and a methylene group, identified by CAS number 36228-29-2. This compound serves as a valuable and versatile chiral building block in advanced organic synthesis, prized for its unique three-membered ring structure which imparts significant steric and electronic properties. It is primarily sought after by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of complex, biologically active molecules.

Application

• Pharmaceutical Intermediate: A key chiral synthon for constructing active pharmaceutical ingredients (APIs), particularly in the development of novel therapeutic agents.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the cyclopropane moiety can enhance biological activity.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances requiring specific stereochemistry.
• Academic & Industrial R&D: Serves as a critical reagent in methodological studies and the development of new synthetic routes in organic chemistry laboratories.
• Material Science Precursor: Potential use in the synthesis of monomers or ligands for advanced polymeric or coordination compounds.

Basic Information

Item	Detail
Product Name	Cyclopropanecarboxylic Acid, 2-Methyl-3-Methylene-, Methyl Ester, trans- (9Ci)
CAS No.	36228-29-2
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	trans-2-Methyl-3-methylenecyclopropanecarboxylic acid methyl ester; Methyl trans-2-methyl-3-methylenecyclopropanecarboxylate; (1R,2S)-rel-2-Methyl-3-methylenecyclopropanecarboxylic Acid Methyl Ester; 2-Methyl-3-methylenecyclopropanecarboxylic acid, methyl ester, trans-; Cyclopropanecarboxylic acid, 2-methyl-3-methylene-, methyl ester, (1R,2S)-rel-; Methyl (1R,2S)-2-methyl-3-methylenecyclopropane-1-carboxylate
EINECS	Contact for details

Quality Control

Every batch of Cyclopropanecarboxylic Acid, 2-Methyl-3-Methylene-, Methyl Ester, trans- (9Ci) is produced and tested under a strict quality management system. We provide comprehensive analytical data to ensure identity, purity, and consistency, which is critical for sensitive synthetic applications. A Certificate of Analysis (COA) detailing specifications such as assay (by GC/HPLC), enantiomeric excess, and impurity profile is available for each lot upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Enantiomeric Purity	Contact for details
Specific Rotation	Contact for details
Water Content (KF)	≤ 0.5%

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