Melting point :268-272 °C
Boiling point :591.0±50.0 °C(Predicted)
Density :1.579±0.06 g/cm3(Predicted)
pka :4.50±1.00(Predicted)
form :solid
InChI :1S/C15H10O5.H2O/c16-9-6-10(17)13-11(7-9)20-15(19)12(14(13)18)8-4-2-1-3-5-8;/h1-7,16-18H;1H2
InChIKey :PGNAALCVWSQLDG-UHFFFAOYSA-N
SMILES :O.Oc1cc(O)c2C(O)=C(C(=O)Oc2c1)c3ccccc3

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.