Melting point :127-130 °C (lit.)
Boiling point :257.07°C (rough estimate)
Density :1.3037 (rough estimate)
refractive index :1.5090 (estimate)
storage temp. :Inert atmosphere,Room Temperature
solubility :water: soluble50mg/mL, clear, almost colorless
form :Powder, Crystals or Lumps
pka :4.42±0.10(Predicted)
color :White to off-white
Water Solubility :Soluble in water and methanol.
BRN :2211017
InChI :InChI=1S/C8H8O4/c9-6-2-1-5(3-7(6)10)4-8(11)12/h1-3,9-10H,4H2,(H,11,12)
InChIKey :CFFZDZCDUFSOFZ-UHFFFAOYSA-N
SMILES :C1(CC(O)=O)=CC=C(O)C(O)=C1
LogP :0.980
CAS DataBase Reference :102-32-9(CAS DataBase Reference)
NIST Chemistry Reference :Acetic acid, (3,4-dihydroxyphenyl)-,(102-32-9)
EPA Substance Registry System :3,4-Dihydroxyphenylacetic acid (102-32-9)

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.