Description

2-Pentynoicacid,5-(2-Oxocyclopentyl)-,Methylester(9Ci) is a specialized organic compound belonging to the class of alkynoic acid esters with a cyclic ketone moiety. This unique molecular architecture makes it a valuable high-purity building block and intermediate for advanced chemical synthesis. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical and agrochemical sectors for constructing complex molecular frameworks, including potential active pharmaceutical ingredients (APIs) and novel crop protection agents.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of novel therapeutic compounds, particularly those requiring complex cyclic and alkyne-containing structures.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its functional groups allow for the introduction of specific biological activity.
• Organic Synthesis Building Block: Serves as a versatile precursor in academic and industrial laboratories for constructing complex molecules via reactions at the alkyne and ester functionalities.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing specialty polymers with tailored properties.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical method development, quality control, and regulatory submissions.

Basic Information

Product Name	2-Pentynoicacid,5-(2-Oxocyclopentyl)-,Methylester(9Ci)
CAS No.	793710-86-8
Molecular Formula	C11H14O3
Molecular Weight	194.23 g/mol
Synonyms	5-(2-Oxocyclopentyl)-2-pentynoic acid methyl ester; Methyl 5-(2-oxocyclopentyl)pent-2-ynoate; 2-Pentynoic acid, 5-(2-oxocyclopentyl)-, methyl ester; 5-(2-Oxocyclopentyl)-2-pentynoic acid methyl ester (9CI)
EINECS	Contact for details

Quality Control

We supply 2-Pentynoicacid,5-(2-Oxocyclopentyl)-,Methylester(9Ci) in high-purity grades suitable for research and commercial synthesis. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request. We adhere to strict quality management protocols to ensure batch-to-batch consistency and reliability for your critical processes.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
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.