Cyclooctene (COE)

C8-Monomers - Building blocks for your synthesis 

The singly unsaturated cyclic hydrocarbon cyclooctene (COE) is a colorless liquid with a boiling point of 145°C.

COE is formed by selective hydrogenation of cyclooctadiene. We produce COE mainly for the manufacture of polyoctenamer (VESTENAMER®) by ring-opening polymerization.
 
Ozonolysis of COE yields suberic acid. Various perfumes are obtained via a number of intermediate stages. Thermolysis of COE yields the Evonik product 1,7-octadiene, which is also used industrially.

Properties of Cyclooctene