Melting point :124-126 °C (lit.)
Boiling point :181 °C/25 mmHg (lit.)
Density :1.1643 (rough estimate)
refractive index :1.4730 (estimate)
Flash point :181°C/25mm
storage temp. :Inert atmosphere,Room Temperature
form :Crystalline Powder
color :White to off-white
Sensitive :Moisture Sensitive
CAS DataBase Reference :4160-82-1(CAS DataBase Reference)
EPA Substance Registry System :2H-Pyran-2,6(3H)-dione, dihydro-4,4-dimethyl- (4160-82-1)

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. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. 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.