Melting point :−16 °C(lit.)
Boiling point :32-34 °C12 mm Hg(lit.)
Density :0.848 g/mL at 20 °C(lit.)
refractive index :n20/D 1.470
Flash point :77 °F
Water Solubility :Insoluble in water
color :Colorless to Almost colorless
BRN :1901031
LogP :3.930
CAS DataBase Reference :931-88-4(CAS DataBase Reference)
NIST Chemistry Reference :Cyclooctene(931-88-4)
EPA Substance Registry System :Cyclooctene (931-88-4)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting/…/equipment. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P331 Do NOT induce vomiting.