Melting point :?101 °C (lit.)
Boiling point :122-123 °C (lit.)
Density :0.715 g/mL at 25 °C (lit.)
vapor density :3.9 (vs air)
vapor pressure :36 mm Hg ( 38 °C)
refractive index :n20/D 1.408(lit.)
FEMA :4293 | 1-OCTENE
Flash point :70 °F
storage temp. :Store below +30°C.
solubility :Soluble in acetone, benzene, and chloroform (Weast, 1986). Miscible with alcohol, ether (Windholz et al., 1983), and many aliphatic hydrocarbons.
pka :>14 (Schwarzenbach et al., 1993)
form :Liquid
Specific Gravity :0.714
color :Clear
Odor :gasoline
explosive limit :0.7-6.8%(V)
Odor Threshold :0.001ppm
Water Solubility :Miscible with water, ether, alcohol and acetone.
Merck :14,1764
JECFA Number :2191
BRN :1734497
Henry's Law Constant :0.952 at 25 °C (Hine and Mookerjee, 1975)
Dielectric constant :2.1（20℃）
Stability :Stable. Highly flammable. Incompatible with strong oxidizing agents, acids.
LogP :4.47 at 20℃
CAS DataBase Reference :111-66-0(CAS DataBase Reference)
EPA Substance Registry System :1-Octene (111-66-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
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. P273 Avoid release to the environment. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P331 Do NOT induce vomiting.