Description

Cyclopentaneacetic Acid, 4-Acetyl-2-Methyl-, Ethyl Ester (5Ci) is a specialized organic ester building block with a complex, functionalized cyclopentane core, identified by CAS NO 802917-46-0. This compound is valued for its unique molecular architecture, which makes it a versatile intermediate in advanced synthetic chemistry, particularly for constructing complex pharmacophores and fine chemicals. It is primarily sought by research and development chemists in the pharmaceutical, agrochemical, and advanced material science industries for creating novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of novel active pharmaceutical ingredients (APIs), especially in central nervous system (CNS) and anti-inflammatory drug candidates.
• Agrochemical Synthesis: Used in the synthesis of advanced, high-performance herbicides and fungicides with complex stereochemistry.
• Fine Chemical Production: Serves as a critical building block for synthesizing specialty flavors, fragrances, and other high-value fine chemicals requiring specific stereochemical configurations.
• Material Science Research: Investigated as a monomer or precursor for developing novel polymers and advanced organic materials with tailored properties.
• Academic & Industrial R&D: Employed in methodological studies and process chemistry development for asymmetric synthesis and complex molecule construction.

Basic Information

Product Name	Cyclopentaneacetic Acid, 4-Acetyl-2-Methyl-, Ethyl Ester (5Ci)
CAS No.	802917-46-0
Molecular Formula	C12H18O3
Molecular Weight	210.27 g/mol
Synonyms	Ethyl 4-Acetyl-2-methylcyclopentaneacetate; 4-Acetyl-2-methylcyclopentaneacetic Acid Ethyl Ester; 2-Methyl-4-acetylcyclopentaneacetic Acid Ethyl Ester; (4-Acetyl-2-methylcyclopentyl)acetic Acid Ethyl Ester; 5Ci-labeled Cyclopentaneacetic Acid Ester; SCHEMBL23883077; AKOS040759246
EINECS	Contact for details

Quality Control

Our Cyclopentaneacetic Acid, 4-Acetyl-2-Methyl-, Ethyl Ester (5Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
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.