Melting point :−57 °C(lit.)
Boiling point :125-127 °C(lit.)
Density :0.703 g/mL at 25 °C(lit.)
vapor density :3.9 (vs air)
vapor pressure :11 mm Hg ( 20 °C)
refractive index :n20/D 1.398(lit.)
Flash point :60 °F
storage temp. :Store below +30°C.
solubility :ethanol: soluble(lit.)
form :Liquid
pka :>14 (Schwarzenbach et al., 1993)
color :Clear colorless
Odor :Like gasoline.
explosive limit :0.8-6.5%(V)
Odor Threshold :1.7ppm
Water Solubility :0.0007 g/L (20 ºC)
Merck :14,6749
BRN :1696875
Henry's Law Constant :4.45 at 25 °C (J?nsson et al., 1982)
Dielectric constant :1.1（-4℃）
Exposure limits :TLV-TWA 300 ppm (～1450 mg/m³) (ACGIH and NIOSH), 500 ppm (～2420 mg/m³) (OSHA); STEL 375 ppm (～1800 mg/m³).
Stability :Stable. Highly flammable. Readily forms explosive mixtures with air. Incompatible with oxidizing agents.
InChIKey :TVMXDCGIABBOFY-UHFFFAOYSA-N
LogP :5.15
Surface tension :21.1mN/m at 298.15K
CAS DataBase Reference :111-65-9(CAS DataBase Reference)
NIST Chemistry Reference :Octane(111-65-9)
EPA Substance Registry System :Octane (111-65-9)

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 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501 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. P273 Avoid release to the environment. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P331 Do NOT induce vomiting.