Melting point :155-157 °C(lit.)
Boiling point :241.69°C (rough estimate)
Density :1.352 (estimate)
refractive index :1.5500 (estimate)
storage temp. :Store below +30°C.
solubility :500g/l
pka :pKa 4.68±0.04(H2O t = 20.0±0.05 I = 0.15) (Uncertain)
form :Crystalline Powder
color :White to almost white
Water Solubility :150 g/L (20 ºC)
Merck :14,9343
BRN :1099858
CAS DataBase Reference :70-49-5(CAS DataBase Reference)
NIST Chemistry Reference :2-Sulfanylsuccinic acid(70-49-5)
EPA Substance Registry System :Butanedioic acid, mercapto- (70-49-5)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 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. P270 Do not eat, drink or smoke when using this product. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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.