Description

2-Cyclopenten-1-One,5-Ethylidene-2-Hydroxy-3,4-Dimethyl-,(4R,5E)-(9Ci) is a high-purity, stereochemically defined cyclopentenone derivative, a versatile chiral building block for advanced organic synthesis. Its unique structure, featuring an ethylidene side chain and specific stereochemistry, makes it a critical intermediate for constructing complex molecules with precise spatial orientation. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, where it serves as a precursor for active pharmaceutical ingredients (APIs) and novel bioactive compounds.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of prostaglandin analogs, steroid derivatives, and other complex therapeutic molecules.
• Agrochemical Research: Used in the development of novel pesticides and herbicides, leveraging its reactive ketone and olefin functionalities.
• Fine Chemical Synthesis: Serves as a foundational building block in asymmetric synthesis for creating flavors, fragrances, and specialty chemicals.
• Academic & R&D: A valuable reagent in organic chemistry research for studying Diels-Alder reactions, Michael additions, and other cycloaddition processes.
• Material Science Precursor: Potential use in synthesizing specialized polymers or ligands for catalytic systems.

Basic Information

Item	Detail
Product Name	2-Cyclopenten-1-One,5-Ethylidene-2-Hydroxy-3,4-Dimethyl-,(4R,5E)-(9Ci)
CAS No.	462116-79-6
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	(4R,5E)-5-Ethylidene-2-hydroxy-3,4-dimethylcyclopent-2-en-1-one; 5-Ethylidene-2-hydroxy-3,4-dimethyl-2-cyclopenten-1-one, (4R,5E)-; (4R,5E)-5-Ethylidene-2-hydroxy-3,4-dimethyl-2-cyclopenten-1-one; 2-Cyclopenten-1-one, 5-ethylidene-2-hydroxy-3,4-dimethyl-, (4R,5E)-; Chiral Cyclopentenone Derivative; Ethylidenecyclopentenone
EINECS	Contact for details

Quality Control

Every batch of our 2-Cyclopenten-1-One derivative is produced under strict quality management protocols. We employ advanced analytical techniques including HPLC, GC, and chiral analysis to ensure high chemical and enantiomeric purity, meeting the stringent requirements for pharmaceutical R&D. Comprehensive Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with each shipment to guarantee traceability and batch-to-batch consistency.

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 heat sources and incompatible materials. The compound is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Water Content (KF)	≤ 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.