Description

α-Acetyl-α-(2-Cyclopentenyl)Acetic Acid Methyl Ester is a specialized chiral building block and ester derivative of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in constructing complex molecular architectures, particularly those containing cyclopentene rings. It is primarily needed by research chemists and process development teams in the pharmaceutical and agrochemical industries for the synthesis of active ingredients and novel chemical entities.

Application

• Pharmaceutical Intermediate: A crucial chiral synthon for the research and development of novel therapeutic agents, including potential antiviral or anti-inflammatory compounds.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides where the cyclopentenyl moiety imparts specific biological activity.
• Fine Chemical Manufacturing: Serves as a versatile building block for synthesizing flavors, fragrances, and other high-value specialty chemicals.
• Academic & Industrial Research: Employed in methodological studies and catalysis research for developing new asymmetric synthesis routes.
• Material Science Precursor: Potential use in synthesizing monomers or ligands for advanced polymeric or coordination compounds.

Basic Information

Product Name	α-Acetyl-α-(2-Cyclopentenyl)Acetic Acid Methyl Ester
CAS No.	90123-46-9
Molecular Formula	C11H16O3
Molecular Weight	196.24 g/mol
Synonyms	Methyl 2-acetyl-2-(cyclopent-2-en-1-yl)acetate; Methyl α-acetyl-α-(2-cyclopenten-1-yl)acetate; 2-(2-Cyclopenten-1-yl)-2-oxobutanoic acid methyl ester; (2-Cyclopentenyl)acetylacetic acid methyl ester; α-Acetyl-α-(2-cyclopentenyl)acetic acid methyl ester; 2-Acetyl-2-(2-cyclopentenyl)acetic acid methyl ester
EINECS	Contact for details

Quality Control

Our α-Acetyl-α-(2-Cyclopentenyl)Acetic Acid Methyl Ester is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting the high standards required for research and process chemistry. A comprehensive Certificate of Analysis (COA) detailing purity (typically by GC or HPLC), chiral purity (if applicable), and impurity profile is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0%
Chiral Purity (if applicable)	Contact for details
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.