Melting point :31-35 °C(lit.)
Boiling point :83-86 °C0.5 mm Hg(lit.)
Density :1.1643 (rough estimate)
FEMA :3153 | 5-ETHYL-3-HYDROXY-4-METHYL-2(5H)-FURANONE
refractive index :n20/D 1.49(lit.)
Flash point :>230 °F
storage temp. :2-8°C
solubility :Chloroform (Slightly), Methanol (Slightly)
pka :9.28±0.40(Predicted)
form :powder to lump to clear liquid
color :White or Colorless to Yellow
Odor :at 0.01 % in dipropylene glycol. sweet fruity caramellic maple fenugreek brown sugar nutty chicory praline butterscotch
Odor Type :caramellic
FreezingPoint :25.0 to 29.0 ℃
JECFA Number :222
Stability :Hygroscopic
InChIKey :IUFQZPBIRYFPFD-UHFFFAOYSA-N
LogP :0.09
CAS DataBase Reference :698-10-2(CAS DataBase Reference)
NIST Chemistry Reference :2(5H)-furanone, 5-ethyl-3-hydroxy-4-methyl-(698-10-2)
EPA Substance Registry System :2(5H)-Furanone, 5-ethyl-3-hydroxy-4-methyl- (698-10-2)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.