Description

Cyclopent-2-En-1-One CAS NO 28982-58-3 is a versatile five-membered cyclic enone, a key building block in organic synthesis prized for its reactive α,β-unsaturated carbonyl system. This compound is essential for constructing complex molecular frameworks, enabling the synthesis of pharmaceuticals, agrochemicals, and advanced materials. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for prostaglandins, steroids, and other bioactive molecules with complex ring structures.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, leveraging its reactivity to create heterocyclic core structures.
• Flavor and Fragrance Ingredient: Serves as a starting material for synthesizing specific musk and fruity aroma compounds.
• Material Science Research: Employed in the development of novel polymers, resins, and organic electronic materials due to its polymerizable double bond and carbonyl group.
• Organic Synthesis Reagent: A fundamental dienophile in Diels-Alder reactions and a Michael acceptor for nucleophilic addition, widely used in academic and industrial research laboratories.
• Fine Chemical Production: Integral to the multi-step synthesis of complex fine chemicals and specialty additives.

Basic Information

Product Name	Cyclopent-2-En-1-One
CAS No.	28982-58-3
Molecular Formula	C5H6O
Molecular Weight	82.10 g/mol
Synonyms	2-Cyclopenten-1-one; Cyclopentenone; 1-Cyclopent-2-enone; 2-Cyclopentenone; 3-Cyclopenten-1-one; Cyclopent-2-enone; 2-Cyclopenten-1-one; 3-Cyclopentenone
EINECS	249-348-5

Quality Control

Our Cyclopent-2-En-1-One is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing including GC, HPLC, and NMR to ensure high purity and consistency. We provide detailed Certificates of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality system supports cGMP standards for applications requiring rigorous traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and bases. Recommended storage temperature is 2-8°C for long-term stability. Keep container tightly sealed when not in use to prevent evaporation and absorption of moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.470 - 1.480
Density (20°C)	0.98 - 1.02 g/mL

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