Description

2-Cyclopenten-1-One, 2-Chloro-4-Ethenyl-4-Hydroxy- is a functionalized cyclopentenone derivative, a versatile chiral building block in advanced organic synthesis. Its unique structure, featuring a reactive ketone, a chloro substituent, and a vinyl alcohol moiety, makes it a critical intermediate for constructing complex molecular architectures. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, particularly for synthesizing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of prostaglandins, steroids, and other bioactive molecules with complex ring systems.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators that require specific stereochemistry.
• Fine Chemical Production: Serves as a precursor for flavors, fragrances, and advanced materials where the cyclopentenone core is required.
• Academic & R&D: A valuable reagent in methodological chemistry research for studying cycloaddition reactions, asymmetric synthesis, and natural product total synthesis.
• Material Science: Potential monomer or cross-linking agent in the development of specialized polymers with unique thermal or optical properties.

Basic Information

Product Name	2-Cyclopenten-1-One, 2-Chloro-4-Ethenyl-4-Hydroxy-
CAS No.	700869-78-9
Molecular Formula	C7H7ClO2
Molecular Weight	158.58 g/mol
Synonyms	2-Chloro-4-ethenyl-4-hydroxycyclopent-2-en-1-one; 4-Hydroxy-2-chloro-4-vinylcyclopent-2-enone; 2-Chloro-4-vinyl-4-hydroxy-2-cyclopenten-1-one; (4-Hydroxy-4-vinyl-2-cyclopenten-1-one), 2-chloro derivative; 2-Chloro-4-hydroxy-4-vinyl-2-cyclopenten-1-one; 4-Ethenyl-4-hydroxy-2-chlorocyclopent-2-enone
EINECS	Contact for details

Quality Control

Our 2-Cyclopenten-1-One, 2-Chloro-4-Ethenyl-4-Hydroxy- is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent chemical identity. A comprehensive Certificate of Analysis (COA) detailing purity, assay, 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 controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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