Description

1-Cyclopentene-1-Carboxylicacid,5-(1-Oxopropyl)-,Ethylester(9Ci) is a specialized organic ester compound with a complex cyclic structure, serving as a valuable intermediate in advanced chemical synthesis. Its unique molecular architecture makes it a critical building block for constructing more complex molecules, particularly in pharmaceutical and agrochemical research and development. This high-purity intermediate is essential for R&D chemists and process development scientists working on novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those with complex cyclic or heterocyclic structures.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, where its functional groups allow for strategic molecular modifications.
• Fine Chemical Production: Serves as a precursor in the manufacture of specialty chemicals, including flavors, fragrances, and advanced materials.
• Organic Synthesis Research: A valuable reagent in academic and industrial laboratories for methodology development and exploring new chemical reactions, such as cycloadditions or functional group transformations.
• Material Science: Investigated as a monomer or cross-linking agent in the development of novel polymers with specific thermal or mechanical properties.

Basic Information

Product Name	1-Cyclopentene-1-Carboxylicacid,5-(1-Oxopropyl)-,Ethylester(9Ci)
CAS No.	632353-27-6
Molecular Formula	C11H16O3
Molecular Weight	196.24 g/mol
Synonyms	Ethyl 5-propionyl-1-cyclopentene-1-carboxylate; 5-(1-Oxopropyl)-1-cyclopentene-1-carboxylic acid ethyl ester; 1-Cyclopentene-1-carboxylic acid, 5-(1-oxopropyl)-, ethyl ester; Ethyl 5-propionylcyclopent-1-ene-1-carboxylate; 632353-27-6; 5-Propionyl-1-cyclopentene-1-carboxylic Acid Ethyl Ester
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for all our chemical intermediates. Production of 1-Cyclopentene-1-Carboxylicacid,5-(1-Oxopropyl)-,Ethylester(9Ci) is monitored through in-process checks and final release testing, which typically includes identity confirmation, purity assay, and impurity profiling. A comprehensive Certificate of Analysis (COA) is provided with each batch, detailing the specific results. Our quality system is designed to ensure batch-to-batch consistency and reliability for your critical R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Recommended storage temperature is between 2°C and 8°C for long-term stability. Keep away from heat, sparks, and open flame. The container should be kept tightly sealed in a dry environment to prevent moisture absorption.

Specification

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