Description

4-Cyclopentene-1,3-Dicarboxylic Acid is a versatile, unsaturated dicarboxylic acid derivative with a reactive cyclopentene backbone. This compound is valued for its bifunctional reactivity, serving as a key building block in advanced organic synthesis. It is primarily sought by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediates: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a functionalized cyclopentene core.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators, leveraging its reactive diacid functionality.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for producing specialty polyesters, polyamides, and other polymers with tailored properties.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions, Michael additions, and other cycloaddition or condensation reactions to create complex, multi-cyclic structures.
• Ligand & Catalyst Development: Serves as a starting material for synthesizing chelating ligands used in asymmetric catalysis and metal-organic frameworks (MOFs).
• Fine Chemical Production: Integral to the manufacture of dyes, flavors, and fragrances where specific carboxylic acid functionalities are required.

Basic Information

Product Name	4-Cyclopentene-1,3-Dicarboxylic Acid
CAS No.	54432-27-8
Molecular Formula	C7H8O4
Molecular Weight	156.13 g/mol
Synonyms	1,3-Cyclopentenedicarboxylic Acid; 4-Cyclopentene-1,3-dicarboxylic acid; Cyclopent-4-ene-1,3-dicarboxylic Acid; 3-Carboxy-4-cyclopentene-1-carboxylic Acid; 1,2,3,6-Tetrahydrophthalic Acid; 4-Cyclopentene-1,3-dicarboxylate
EINECS	Contact for details

Quality Control

Our 4-Cyclopentene-1,3-Dicarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which may affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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