Description

4-Cyclopentene-1,3-Dione is a versatile and reactive cyclic diketone building block, also known as 1,2-Cyclopentanedione. This compound is valued for its unique conjugated structure, making it a crucial intermediate in the synthesis of complex organic molecules and heterocyclic compounds. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various drug candidates, including potential antiviral, anti-inflammatory, and central nervous system (CNS) active compounds.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Organic Synthesis Building Block: Serves as a versatile starting material for Diels-Alder reactions, cyclizations, and the preparation of fused ring systems.
• Ligand and Catalyst Development: Employed in the creation of specialized ligands for metal complexes and catalysts used in asymmetric synthesis.
• Material Science Research: Investigated for the preparation of organic semiconductors, conductive polymers, and advanced organic frameworks.
• Flavor and Fragrance Chemistry: Acts as an intermediate for synthesizing specific aroma chemicals and flavoring agents.

Basic Information

Product Name	4-Cyclopentene-1,3-Dione
CAS No.	930-60-9
Molecular Formula	C5H4O2
Molecular Weight	96.08 g/mol
Synonyms	1,2-Cyclopentanedione; 3-Cyclopentene-1,2-dione; Cyclopent-3-ene-1,2-dione; 1,2-Diketocyclopent-3-ene; 3-Cyclopentene-1,2-dione; 4-Cyclopentene-1,2-dione
EINECS	213-226-7

Quality Control

Our 4-Cyclopentene-1,3-Dione is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment 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 a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	78 - 82 °C
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.1 %

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