Melting point :158-160 °C (dec.) (lit.)
Boiling point :471.4±30.0 °C(Predicted)
Density :1.2663 (rough estimate)
refractive index :1.4000 (estimate)
storage temp. :2-8°C
solubility :DMSO (Slightly), Methanol (Slightly), Water (Slightly)
form :Solid
pka :2.42, 4.54(at 25℃)
color :White to Off-White
Water Solubility :Soluble in water and alcohol.
Merck :14,9073
BRN :1209791
InChI :1S/C3H4O5/c4-1(2(5)6)3(7)8/h1,4H,(H,5,6)(H,7,8)
InChIKey :ROBFUDYVXSDBQM-UHFFFAOYSA-N
SMILES :OC(C(O)=O)C(O)=O
CAS DataBase Reference :80-69-3(CAS DataBase Reference)
EPA Substance Registry System :Propanedioic acid, hydroxy- (80-69-3)

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.