Description

Ethanedioic Acid, Ethyl 1-Ethylcyclopentyl Ester (9Ci) is a specialized organic ester derivative of ethanedioic acid (oxalic acid) with a complex alkylated cyclopentyl structure. This compound serves as a valuable high-purity chemical intermediate and building block for advanced synthesis in fine chemical and pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: Used in the research and synthesis of novel active pharmaceutical ingredients (APIs), particularly for constructing complex ester and cyclopentyl-based molecular scaffolds.
• Agrochemical Synthesis: Serves as a key building block in the development of new-generation herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Acts as a precursor for specialty chemicals, including advanced polymers, ligands for catalysis, and performance materials.
• Organic Synthesis Research: Employed in academic and industrial R&D laboratories for method development and exploring new chemical reactions involving ester and cyclic alkane functionalities.
• Ligand and Catalyst Development: Utilized in the design and synthesis of novel chelating agents or organocatalysts due to its specific steric and electronic properties.

Basic Information

Product Name	Ethanedioic Acid, Ethyl 1-Ethylcyclopentyl Ester (9Ci)
CAS No.	677775-90-5
Molecular Formula	C11H18O4
Molecular Weight	214.26 g/mol
Synonyms	1-Ethylcyclopentyl ethyl oxalate; Ethyl 1-ethylcyclopentyl oxalate; Oxalic acid, ethyl 1-ethylcyclopentyl ester; 1-Ethylcyclopentanol, oxalate (ester); Diethyl (1-ethylcyclopentyl) oxalate; Ethyl (1-ethylcyclopentyl) oxaloate; 677775-90-5 (CAS Registry Number)
EINECS	Contact for details

Quality Control

Our Ethanedioic Acid, Ethyl 1-Ethylcyclopentyl Ester (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high chemical purity and consistency, meeting the exacting standards required for research and process chemistry. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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