C8 monomers
Cyclooctene (COE)
Evonik is a leader in the production of industrially available cyclic C8 monomers and offers the four most important synthetic chemicals 1,5-cyclooctadiene (COD), cyclooctene (COE), cyclooctane (COAN), and 4-vinylcyclohex-1-ene (VCH).
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
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Property
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Value
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Empirical formula
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C8H14
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CAS-Number
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931-87-3
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Molecular weight
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110,2 g/mol
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Melting point
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-16,9 °C
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Boiling point 1013 hPa
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148 °C
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Purity: Cycloocten
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min. 96%
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Purity: Cyclooctan
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max. 4%
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