Melting point :213-214 °C (lit.)
Boiling point :213-214℃
Density :1.408±0.06 g/cm3(Predicted)
storage temp. :Keep in dark place,Sealed in dry,Room Temperature
pka :3.90±0.10(Predicted)
form :Powder
color :Beige
InChI :InChI=1S/C9H7NO2/c11-9(12)7-2-1-3-8-6(7)4-5-10-8/h1-5,10H,(H,11,12)
InChIKey :ROGHUJUFCRFUSO-UHFFFAOYSA-N
SMILES :N1C2=C(C(C(O)=O)=CC=C2)C=C1
CAS DataBase Reference :2124-55-2(CAS DataBase Reference)

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.