Description

3-Ethyl-1-Cyclopentene is a valuable, highly volatile cyclic olefin with a unique structural motif. This compound serves as a critical building block and reactive intermediate in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for applications requiring precise control over ring systems and stereochemistry.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and complex natural product analogs, leveraging its reactive alkene functionality for cycloadditions and functional group transformations.
• Agrochemical Synthesis: Acts as a key precursor in the development of novel herbicides, fungicides, and insecticides, where its aliphatic ring structure contributes to specific biological activity.
• Fine Chemical Production: Employed in the manufacture of flavors, fragrances, and performance chemicals that require specific cyclic hydrocarbon backbones.
• Polymer & Material Science: Serves as a monomer or co-monomer in the development of specialty polymers with tailored thermal and mechanical properties.
• Organic Synthesis Research: A versatile reagent in academic and industrial R&D for studying ring-opening metathesis polymerization (ROMP), hydrogenation reactions, and other catalytic processes.
• Cross-Coupling Reactions: Functions as a substrate in palladium-catalyzed and other metal-mediated coupling reactions to form carbon-carbon bonds.

Basic Information

Product Name	3-Ethyl-1-Cyclopentene
CAS No.	694-35-9
Molecular Formula	C7H12
Molecular Weight	96.17 g/mol
Synonyms	3-Ethylcyclopent-1-ene; 3-Ethyl-1-cyclopentene; 1-Cyclopentene, 3-ethyl-; 3-Ethylcyclopentene; NSC 74130
EINECS	211-778-9

Quality Control

Our 3-Ethyl-1-Cyclopentene is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including GC, GC-MS, and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place away from heat, sparks, and open flames. Due to its highly volatile nature, keep containers tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.428 - 1.432
Density (20°C)	0.78 - 0.82 g/mL

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