Melting point :-101 °C
Boiling point :101-102 °C (lit.)
Density :0.708 g/mL at 25 °C (lit.)
vapor density :>3.8 (vs air)
vapor pressure :83 mmHg ( 37.7 °C)
refractive index :n20/D 1.411
Flash point :21 °F
storage temp. :2-8°C
form :Liquid
Specific Gravity :0.708
color :Clear colorless
Odor :Like gasoline.
explosive limit :4.8%
Water Solubility :Miscible with acetone. Partially soluble in methanol, diethyl ether, benzene, chloroform. Immiscible with water.
BRN :1098309
Stability :Stable. Highly flammable. Vapour may flow over surfaces to a distant source of ignition. Incompatible with oxidizing agents.
CAS DataBase Reference :107-39-1(CAS DataBase Reference)
NIST Chemistry Reference :1-Pentene, 2,4,4-trimethyl-(107-39-1)
EPA Substance Registry System :1-Pentene, 2,4,4-trimethyl- (107-39-1)

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 H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
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. P242 Use only non-sparking tools. P273 Avoid release to the environment.