Description

2,2,3-Trimethylcyclopentaneacetic Acid Ethyl Ester is a high-purity specialty ester valued for its unique sterically hindered structure, which imparts specific reactivity and stability profiles. This compound serves as a critical advanced intermediate in the synthesis of complex organic molecules, particularly in the fine chemical and pharmaceutical sectors. It is essential for R&D chemists and process development teams working on novel active ingredients, fragrances, and performance materials where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of proprietary drug candidates and active pharmaceutical ingredients (APIs), especially those requiring complex, multi-ring systems.
• Fine Chemical Synthesis: Used in the production of specialty chemicals, including advanced ligands, catalysts, and chiral auxiliaries for asymmetric synthesis.
• Fragrance and Flavor Industry: Serves as a precursor for the development of novel musk-like or woody aroma chemicals due to its cyclopentane backbone and ester functionality.
• Agrochemical Research: Employed in the creation of new pesticide and herbicide molecules where its structural motif can contribute to specific biological activity and environmental stability.
• Material Science: Investigated as a monomer or modifier in the development of specialized polymers with tailored thermal and mechanical properties.
• Academic and Industrial R&D: A valuable reagent for methodological development in organic chemistry, including studies on ring transformations and esterification reactions.

Basic Information

Product Name	2,2,3-Trimethylcyclopentaneacetic Acid Ethyl Ester
CAS No.	102839-08-7
Molecular Formula	C12H22O2
Molecular Weight	198.30 g/mol
Synonyms	Ethyl 2,2,3-Trimethylcyclopentaneacetate; 2,2,3-Trimethylcyclopentaneacetic Acid Ethyl Ester; Cyclopentaneacetic acid, 2,2,3-trimethyl-, ethyl ester; Ethyl (2,2,3-trimethylcyclopentyl)acetate; 2-(2,2,3-Trimethylcyclopentyl)acetic acid ethyl ester
EINECS	Contact for details

Quality Control

Our production of 2,2,3-Trimethylcyclopentaneacetic Acid Ethyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, detailing all critical quality attributes. Our quality system is designed to support applications requiring high-purity intermediates under cGMP or ISO 9001 frameworks.

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 bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider maintaining under an inert atmosphere to preserve optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
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.