Melting point :136-137 °C
Boiling point :102 °C(lit.)
Density :0.964 g/mL at 25 °C(lit.)
refractive index :n20/D 1.434(lit.)
Flash point :50 °F
storage temp. :2-8°C
form :Liquid
color :Clear colorless to very faintly yellow
Water Solubility :Immiscible with water.
BRN :102495
InChI :InChI=1S/C5H8O/c1-2-4-5(3-1)6-4/h4-5H,1-3H2
InChIKey :GJEZBVHHZQAEDB-UHFFFAOYSA-N
SMILES :C12C(O1)CCC2
LogP :0.908 (est)
CAS DataBase Reference :285-67-6(CAS DataBase Reference)
NIST Chemistry Reference :cis-1,2-Epoxycyclopentane(285-67-6)
EPA Substance Registry System :6-Oxabicyclo[3.1.0]hexane (285-67-6)

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 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.