Description

1,3-Cyclopentadiene-1-Carboxylic Acid, 5-(1-Hydroxyethylidene)-, Methyl Ester is a specialized organic intermediate featuring a functionalized cyclopentadiene core. This compound matters for its role as a versatile building block in advanced organic synthesis, enabling the construction of complex molecular architectures. It is needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and materials science industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those with complex polycyclic or heterocyclic structures.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, leveraging its reactive diene and ester functionalities.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers and advanced organic electronic materials.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions and other cycloadditions to construct intricate carbon skeletons for fine chemicals.
• Ligand and Catalyst Development: Utilized as a starting material for synthesizing novel chelating ligands and organometallic catalysts.
• Flavor and Fragrance Industry: Potential intermediate for the synthesis of complex terpenoid-like aroma molecules.

Basic Information

Product Name	1,3-Cyclopentadiene-1-Carboxylic Acid, 5-(1-Hydroxyethylidene)-, Methyl Ester
CAS No.	195446-46-9
Molecular Formula	C9H10O3
Molecular Weight	166.17 g/mol
Synonyms	Methyl 5-(1-hydroxyethylidene)-1,3-cyclopentadiene-1-carboxylate; 5-(1-Hydroxyethylidene)-1,3-cyclopentadiene-1-carboxylic Acid Methyl Ester; 1-Carbomethoxy-5-(1-hydroxyethylidene)-1,3-cyclopentadiene; Cyclopentadiene carboxylic acid methyl ester derivative
EINECS	Contact for details

Quality Control

Our 1,3-Cyclopentadiene-1-Carboxylic Acid, 5-(1-Hydroxyethylidene)-, Methyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support cGMP and ISO 9001 standards for research and development materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.