Melting point :171-173 °C(Solv: acetic acid (64-19-7))
Boiling point :407.8±28.0 °C(Predicted)
Density :1.624±0.06 g/cm3(Predicted)
storage temp. :under inert gas (nitrogen or Argon) at 2-8°C
pka :6.52±0.20(Predicted)
Appearance :Off-white to light brown Solid
InChI :InChI=1S/C8H4O4/c9-4-1-2-5-6(3-4)8(11)12-7(5)10/h1-3,9H
InChIKey :PXHIYFMTRHEUHZ-UHFFFAOYSA-N
SMILES :C1(=O)C2=C(C=C(O)C=C2)C(=O)O1

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:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. 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. P321 Specific treatment (see … on this label). P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P362 Take off contaminated clothing and wash before reuse.