Description

4-Cyclopentene-1,3-Dione, 4,5-Dichloro-2-Methyl- is a specialized, high-purity organic intermediate characterized by its unique halogenated cyclopentenedione structure. This compound is valued for its reactivity, serving as a critical building block in the synthesis of complex molecules for advanced research and industrial applications. It is primarily sought by the pharmaceutical, agrochemical, and fine chemical industries for use in developing active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for creating complex heterocyclic cores.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, leveraging its reactive dichloro and dione functionalities.
• Fine Chemical Production: Serves as a versatile precursor for synthesizing dyes, pigments, and other performance chemicals.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing novel polymers with specific optical or electronic properties.
• Academic & R&D Laboratories: Employed in organic chemistry research for methodology development and exploring new reaction pathways.

Basic Information

Item	Detail
Product Name	4-Cyclopentene-1,3-Dione, 4,5-Dichloro-2-Methyl-
CAS No.	727723-40-2
Molecular Formula	C6H4Cl2O2
Molecular Weight	178.00 g/mol
Synonyms	4,5-Dichloro-2-methyl-4-cyclopentene-1,3-dione; 2-Methyl-4,5-dichlorocyclopent-4-ene-1,3-dione; 4,5-Dichloro-2-methylcyclopent-4-ene-1,3-dione; 4-Cyclopentene-1,3-dione, 4,5-dichloro-2-methyl-; Dichloromethylcyclopentenedione
EINECS	Contact for details

Quality Control

Our 4-Cyclopentene-1,3-Dione, 4,5-Dichloro-2-Methyl- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent composition. Certificates of Analysis (COA) detailing all specifications 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). Keep away from strong bases and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.