Cyclononene

Cyclononene
	1-Cyclononene (Z)-Cyclononene
Names
	IUPAC name (E)-Cyclononene, (Z)-Cyclononene
	Other names cis-Cyclononene, trans-Cyclononene
Identifiers
CAS Number	933-21-1 ;
3D model (JSmol)	Interactive image ;
ChemSpider	4575884 ;
PubChem CID	5463153 ;
CompTox Dashboard (EPA)	DTXSID201316842 ;
	InChI InChI=1S/C9H16/c1-2-4-6-8-9-7-5-3-1/h1-2H,3-9H2/b2-1- Key: BESIOWGPXPAVOS-UPHRSURJSA-N;
	SMILES C\1=C\CCCCCCC/1;
Properties
Chemical formula	C9H16
Molar mass	124.227 g·mol−1
Density	0.812 g/mL
Boiling point	106 °C (223 °F; 379 K)
Hazards
Flash point	41 °C (106 °F; 314 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Last updated September 02, 2025

Cyclononene is a cycloalkene with a nine-membered ring, with two possible geometric isomers, denoted cis-cyclononene and trans-cyclononene, or (Z)-cyclononene and (E)-cyclononene.^[1]

References

↑ Turner, Richard B.; Meador, W. R. (1957). "Heats of Hydrogenation. IV. Hydrogenation of Some cis- and trans-Cycloölefins". Journal of the American Chemical Society. 79 (15): 4133–4136. Bibcode:1957JAChS..79.4133T. doi:10.1021/ja01572a042.

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[1] Turner, Richard B.; Meador, W. R. (1957). "Heats of Hydrogenation. IV. Hydrogenation of Some cis- and trans-Cycloölefins". Journal of the American Chemical Society. 79 (15): 4133–4136. Bibcode:1957JAChS..79.4133T. doi:10.1021/ja01572a042.

[1]

v t e Cycloalkenes
Alkenes	Cyclopropene Cyclobutene Cyclopentene Cyclohexene Cycloheptene Cyclooctene Cyclononene Cyclodecene
Dienes	Cyclobutadiene Cyclopentadiene Cyclohexadiene 1,3-Cyclohexadiene 1,4-Cyclohexadiene Cycloheptadiene 1,3-Cycloheptadiene 1,4-Cycloheptadiene Cyclooctadiene 1,5-Cyclooctadiene
Trienes	Benzene Cycloheptatriene
Tetraenes	Cyclooctatetraene Cyclononatetraene

Names
1-Cyclononene (Z)-Cyclononene
IUPAC name (E)-Cyclononene, (Z)-Cyclononene
Other names cis-Cyclononene, trans-Cyclononene
Identifiers
CAS Number	933-21-1
3D model (JSmol)	Interactive image
ChemSpider	4575884
PubChem CID	5463153
CompTox Dashboard (EPA)	DTXSID201316842
InChI InChI=1S/C9H16/c1-2-4-6-8-9-7-5-3-1/h1-2H,3-9H2/b2-1- Key: BESIOWGPXPAVOS-UPHRSURJSA-N
SMILES C\1=C\CCCCCCC/1
Properties
Chemical formula	C₉H₁₆
Molar mass	124.227 g·mol⁻¹
Density	0.812 g/mL
Boiling point	106 °C (223 °F; 379 K)
Hazards
Flash point	41 °C (106 °F; 314 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references