Melting point :198-199 °C (lit.)
Boiling point :264.27°C (rough estimate)
Density :1.1555 (rough estimate)
refractive index :1.4500 (estimate)
storage temp. :Keep in dark place,Sealed in dry,Room Temperature
solubility :alcohol: soluble(lit.)
form :Powder
pka :-0.31, 11.76(at 20℃)
color :White to light purple or purple-brownish
Water Solubility :1.052g/L(20 ºC)
Merck :14,1825
BRN :2855
CAS DataBase Reference :59-31-4(CAS DataBase Reference)
NIST Chemistry Reference :2(1H)-Quinolinone(59-31-4)
EPA Substance Registry System :2(1H)-Quinolinone (59-31-4)

Symbol(GHS):
Signal word:	Danger
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 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 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. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.