Melting point :280 °C (dec.)(lit.)
alpha :D24 +25.1°; D23 +20.1° (1N HCl) (Armstrong, Lewis)
Density :1.085 (estimate)
refractive index :22 ° (C=1, 1mol/L HCl)
storage temp. :Keep in dark place,Sealed in dry,2-8°C
solubility :Aqueous Acid (Slightly), Water (Slightly)
form :solid
Boiling point :310.4±37.0 °C(Predicted)
pka :2.23±0.10(Predicted)
color :White to Off-White
optical activity :22.068°(C=0.01g/ml 1N HCL)
Merck :14,3738
InChI :1S/C6H13NO2S/c1-2-10-4-3-5(7)6(8)9/h5H,2-4,7H2,1H3,(H,8,9)/t5-/m0/s1
InChIKey :GGLZPLKKBSSKCX-YFKPBYRVSA-N
SMILES :CCSCC[C@H](N)C(O)=O
CAS DataBase Reference :13073-35-3(CAS DataBase Reference)
EPA Substance Registry System :L-Ethionine (13073-35-3)

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.