Boiling point :112-115℃ (15 Torr)
Density :1.054±0.06 g/cm3 (20 ºC 760 Torr)
refractive index :1.40511 (20℃)
Flash point :94.7±13.3℃
storage temp. :Sealed in dry,Room Temperature
pka :3.55±0.10(Predicted)
Appearance :Colorless to light yellow Liquid
InChI :InChI=1S/C5H10O3/c1-2-3-8-4-5(6)7/h2-4H2,1H3,(H,6,7)
InChIKey :SGUYGLMQEOSQTH-UHFFFAOYSA-N
SMILES :C(O)(=O)COCCC

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, 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:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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.