High Performance
Building Blocks

Evonik, the creative industrial group from Germany,is one of the world leaders in specialty chemicals.
Our activities focus on the key megatrends health,nutrition, resource efficiency and globalization.
Evonik. Power to create.

2High Performance
Building Blocks

Introduction
The specialty chemicals company
is a leader in the production ofindustrially available cyclic C8 monomers
and offers the four most important
synthetic chemicals in this field.

The C8 monomers are used forproduction of flame retardants, as
modulators in polyolefin production,
as building blocks in the perfume andaroma industries, and as intermediates
for synthesis of specialty chemicals.

1,5-Cyclooctadiene (COD)

1,5-cyclooctadiene, for example, isused as a base material for producing
effective flame retardants for plastics.
COD and COE are also building blocks
in the fragrance industry for productionof components with musky base notes.

Cyclooctene (COE)
Cyclooctane (COAN)
4-Vinylcyclohex-1-ene (VCH)3

1,5-Cyclooctadiene (COD)

The doubly unsaturated
cyclic hydrocarbon
1,5-cyclooctadiene (COD)
is a colorless liquid withan aromatic odor.

Characteristic properties• COD is an important starting materialfor synthesis of cyclic C8 compounds.
• Bromination produces an effective
flame retardant for plastics.
• COD is a component of catalysts in thesilanes production process.
• It is used as a modulator in the rubberindustry.

Property

Value

Empirical formula

C8H12CAS-Number

111-78-04

Molecular weight

108.2

Melting point-15.8 °C

Boiling point 1013 hPa

145.6 °C

Purity99% (min)• COD also serves in the fragrance
industry for production of fragrances.

OHOHOOHOCOOHOHOOOHHOHOOC

OH
Br

H2 N
BRNS
NH2HOOC

4COOH

BrOH

CCI3

Cyclooctene (COE)

The singly unsaturated
cyclic hydrocarbon
cyclooctene (COE) isa colorless liquid with acharacteristic smell.

Characteristic properties• Ozonolysis of COE and the oxidative
degradation in nitric acid yield subericacid.
• COE can be used as building blockfor chemical lead structures in the 		fragrance industry.
• Thermolysis of COE yields theEvonik product 1,7-octadiene which
can be used as crosslinker.

PropertyValue

Empirical formula

C8H14

CAS-Number

931-87-3Molecular weight

110.2

Melting point-16.9 °C

Boiling point 1013 hPa

145.6 °C

PurityCyclooctene≥ 96%

Cyclooctane≤ 4%O
COOHOHHNOHONHCIOH
O
OH

O
OH

OO
O

4OOH

NC

HO

5

Cyclooctane (COAN)

The saturated cyclichydrocarbon cyclooctane(COAN) is a colorless liquidat room temperature.

Characteristic properties• COAN is very easily soluble inapolar substances.
It can be used as a solvent whenever
the special chemical inertness of 		saturated cyclic hydrocarbons is 		required.

Property

Value

Empirical formula

C8H16CAS-Number

292-64-8

Molecular weight

112.2

Melting point

12 - 14 °C

Boiling point 1013 hPa

150 - 152 °C

Purity≥ 98.5% (min)NO2OH

SO3 HOOH

6CIO

ONHONOHVinylcyclohexene (VCH)

The doubly unsaturated
cyclic hydro-carbon
4-vinylcyclohexene (VCH)
is a colorless liquid witha pungent odor.

Characteristic properties• VCH can be used as building blockfor exclusive synthesis.
• Due to the reactive vinyl-group,
VCH can act as modulator in poly-		merisation processes

Property

Value

Empirical formula

C8H12CAS-Number

100-40-3Molecular weight

108.2

Melting point-101 °C

Boiling point 1013 hPa

129 °C

Purity≥ 98% (min)OHOHOOO

COOH

COOH
COOH
COOH

OH7

Contact
Dr. Peter Hannen
phone +49 2365 49-5316
peter.hannen@evonik.com

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in good faith and believed to be correct
as of the date prepared. Recipients of thisinformation and recommendations must
make their own determination as to its
suitability for their purposes. In no event
shall Evonik assume liability for damages
or losses of any kind or nature that result
from the use of or reliance upon thisinformation and recommendations.
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imply that similar products could not beused. Evonik reserves the right to makeany changes to the information and/or
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prior or subsequent notice.
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Evonik Recource Efficiency GmbHHigh Performance Polymers
45764 Marl
Germany

05/GR/250/en

phone +49 2365 49-9227
fax +49 2365 49-809227
evonik-hp@evonik.com
www.evonik.com/c8-rings