Melting point :271-272 °C (lit.)
Boiling point :265.75°C (rough estimate)
Density :1.2312 (rough estimate)
refractive index :1.4900 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :DMSO (Slightly), Methanol (Very Slightly, Heated)
form :Solid
pka :9.20±0.50(Predicted)
color :Light Brown
InChI :InChI=1S/C8H6N2O/c11-8-5-9-6-3-1-2-4-7(6)10-8/h1-5H,(H,10,11)
InChIKey :FFRYUAVNPBUEIC-UHFFFAOYSA-N
SMILES :N1C2=C(C=CC=C2)N=CC1=O
CAS DataBase Reference :1196-57-2(CAS DataBase Reference)
NIST Chemistry Reference :2(1H)-quinoxalinone(1196-57-2)
EPA Substance Registry System :2(1H)-Quinoxalinone (1196-57-2)

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. 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.