Melting point :260℃ (dec.)
alpha :[α]D20 +7.5～+9.5° (c=7.4, H2O)
Density :1.775±0.06 g/cm3(Predicted)
refractive index :8 ° (C=5, H2O)
storage temp. :Keep in dark place,Inert atmosphere,Room temperature
solubility :Methanol (Slightly), Water (Slightly)
form :Powder or Crystalline Powder
pka :1.3(at 25℃)
color :White to off-white
Water Solubility :almost transparency
Merck :14,2780
CAS DataBase Reference :498-40-8(CAS DataBase Reference)
EPA Substance Registry System :L-Alanine, 3-sulfo- (498-40-8)

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 H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P310 Immediately call a POISON CENTER or doctor/physician.