Cyclopentadiene CAS 542-92-7, with the chemical formula C₅H₆, is a colorless liquid with a terpene-like odor at room temperature. Its boiling point is 41.5°C, flash point is 25°C (open cup), and it is insoluble in water but miscible with various organic solvents such as ethanol and ether. As a crucial organic synthetic intermediate, it plays a key role in chemical industries, materials, and pesticide sectors. ‌

Basic physicochemical properties

Cyclopentadiene, also known as 1,3-cyclopentadiene, has a CAS number of 542-92-7 and a molecular weight of 66.10. Its vapor can form explosive mixtures with air, with an explosive limit ranging from 1.7% to 14.6%. It is classified as a flammable liquid and requires handling and storage away from ignition sources in a cool, ventilated area. ‌

This substance is anesthetic and may cause health hazards with prolonged exposure. Appropriate protective equipment should be worn during handling.

Specification

Appearance:  Colorless clear liquid, with no visible impurities

Assay:  99.0%min

Water: 0.1%max

- Organometallic Compounds and Catalysts: Cyclopentadiene can form organometallic compounds with metals such as iron and cobalt, with ferrocene being the most notable product. Ferrocene and its derived metallocene compounds serve as the cornerstone of modern organometallic chemistry and are widely used in the field of catalysis. ‌

- Polymers Industry: Cyclopentadiene and its dimer dicyclopentadiene are essential raw materials for synthesizing the third monomer of ethylene-propylene rubber and petroleum resins. Through the Diels-Alder reaction, they can also be used to produce polymer monomers such as norbornene. ‌

- Pesticides and Fine Chemicals: This compound serves as a key starting material for synthesizing intermediates of pesticides such as chlorodane and endosulfan (e.g., tetrachlorocyclopentadiene). Additionally, it is used in the synthesis of fragrances like sandalwood alcohol and certain pharmaceutical intermediates. ‌

- Emerging Fields: With the advancement of new energy technologies, derivatives of cyclopentadiene have also begun to demonstrate application potential in emerging fields such as battery materials.

Packing

20mt/Tank or 210kg/iron drum 

or as per request.