At room temperature, cyclohexene is a colorless liquid with a sharp odor.

[3] Cyclohexene is produced by the partial hydrogenation of benzene, a process developed by the Asahi Chemical company.

[4] The main product of the process is cyclohexane because cyclohexene is more easily hydrogenated than benzene.

[10] Cyclohexene is most stable in a half-chair conformation,[11] unlike the preference for a chair form of cyclohexane.

For cyclohexene, however, the alkene is planar, equivalent to an eclipsed conformation at that bond.