Description

2-Cyclopentene-1-Carboxylicacid,1-Acetyl-2-Methyl-,1,1-Dimethylethylester(9Ci) is a specialized organic ester building block of significant interest in advanced synthetic chemistry. Its unique cyclopentene core functionalized with acetyl and ester groups makes it a valuable intermediate for constructing complex molecular architectures. This compound is primarily sought by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon or precursor in the multi-step synthesis of potential drug candidates, particularly those with complex carbocyclic structures.
• Agrochemical Research: Used in the development and production of novel herbicides, fungicides, and insecticides that require specific, functionalized cyclopentene motifs.
• Fine Chemical Synthesis: Acts as a versatile building block for creating specialty chemicals, flavors, fragrances, and advanced materials where its specific stereochemistry is critical.
• Academic & R&D Laboratories: Employed in methodological studies and catalysis research for developing new organic transformations, such as cycloadditions or asymmetric synthesis.

Basic Information

Product Name	2-Cyclopentene-1-Carboxylicacid,1-Acetyl-2-Methyl-,1,1-Dimethylethylester(9Ci)
CAS No.	811784-41-5
Molecular Formula	C13H20O3
Molecular Weight	224.30 g/mol
Synonyms	1-Acetyl-2-methyl-2-cyclopentene-1-carboxylic acid tert-butyl ester; tert-Butyl 1-acetyl-2-methyl-2-cyclopentene-1-carboxylate; 1,1-Dimethylethyl 1-acetyl-2-methyl-2-cyclopentene-1-carboxylate; 2-Cyclopentene-1-carboxylic acid, 1-acetyl-2-methyl-, 1,1-dimethylethyl ester; 1-Acetyl-2-methylcyclopent-2-ene-1-carboxylic acid tert-butyl ester; tert-Butyl 1-acetyl-2-methylcyclopent-2-ene-1-carboxylate
EINECS	Contact for details

Quality Control

Every batch of our 2-Cyclopentene-1-Carboxylicacid,1-Acetyl-2-Methyl-,1,1-Dimethylethylester(9Ci) is produced and controlled under a strict quality management system. We provide comprehensive analytical data to ensure the compound meets the high-purity standards required for research and development applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request and are essential for your regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Recommended storage temperature is between 2°C and 8°C for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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