Description

Cyclopentene Oxide is a versatile and reactive epoxide compound, serving as a crucial building block in advanced organic synthesis. Its strained three-membered oxirane ring makes it a valuable intermediate for creating complex molecular architectures, including pharmaceuticals, agrochemicals, and specialty polymers. This high-purity chemical is essential for research and development laboratories, fine chemical manufacturers, and industrial-scale producers seeking reliable, high-quality intermediates for their processes.

Application

• Pharmaceutical Intermediate: Key starting material or intermediate in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Polymer & Resin Modification: Acts as a monomer or cross-linking agent for producing specialized epoxy resins and polymers with tailored properties.
• Fine Chemical Production: Serves as a precursor for synthesizing flavors, fragrances, and other high-value specialty chemicals.
• Organic Synthesis Reagent: Employed in ring-opening reactions, nucleophilic additions, and other transformations to introduce functional groups.
• Academic & Industrial R&D: A fundamental reagent for methodological development and exploratory chemistry in research institutions.

Basic Information

Product Name	Cyclopentene Oxide
CAS No.	285-67-6
Molecular Formula	C5H8O
Molecular Weight	84.12 g/mol
Synonyms	1,2-Epoxycyclopentane; Cyclopentene epoxide; 7-Oxabicyclo[4.1.0]heptane; Oxirane, pentamethylene-; NSC 60545; 3-Oxabicyclo[3.1.0]hexane (incorrect but common misnomer); Pentamethylene oxide (related)
EINECS	206-008-5

Quality Control

Our Cyclopentene Oxide is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable, and we support our clients' needs for regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) after opening to prevent degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.96 - 0.98
Refractive Index (n20/D)	1.435 - 1.445

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