Description

1,3-Cyclopentadiene-1-Carboxylic Acid, 3-Ethyl-, Methyl Ester is a specialized organic ester building block with a functionalized cyclopentadiene core. This compound matters for its unique structural features, offering a reactive diene system and an ester group that make it a valuable intermediate in advanced organic synthesis. It is needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for candidates with complex polycyclic frameworks.
• Agrochemical Synthesis: Used in the development of new generation herbicides, fungicides, and insecticides where the cyclopentadiene moiety is integral to biological activity.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers, resins, and advanced organic electronic materials.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions and other cycloadditions to construct intricate carbocyclic and heterocyclic compounds in academic and industrial research.
• Fine Chemical Production: Utilized in the multi-step synthesis of flavors, fragrances, and other high-value specialty chemicals.
• Ligand and Catalyst Development: Provides a scaffold for creating novel ligands used in asymmetric catalysis and transition metal complexes.

Basic Information

Product Name	1,3-Cyclopentadiene-1-Carboxylic Acid, 3-Ethyl-, Methyl Ester
CAS No.	786695-05-4
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	Methyl 3-ethyl-1,3-cyclopentadiene-1-carboxylate; 3-Ethyl-1,3-cyclopentadiene-1-carboxylic acid methyl ester; 1-Carbomethoxy-3-ethyl-1,3-cyclopentadiene; 3-Ethylcyclopentadiene-1-carboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our 1,3-Cyclopentadiene-1-Carboxylic Acid, 3-Ethyl-, Methyl Ester is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request 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 room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	Total impurities ≤ 3.0%

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