Melting point :132-134°C
Boiling point :104°C/4mmHg(lit.)
Density :1.2477 (rough estimate)
refractive index :1.6310 (estimate)
storage temp. :Sealed in dry,Store in freezer, under -20°C
solubility :Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
form :Solid
color :White
λmax :302nm(EtOH)(lit.)
BRN :153970
LogP :2.080
CAS DataBase Reference :523-50-2(CAS DataBase Reference)
IARC :3 (Vol. 40, Sup 7) 1987
NIST Chemistry Reference :2H-furo[2,3-h]-1-benzopyran-2-one(523-50-2)

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:	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.