Melting point :291 °C (dec.)(lit.)
alpha :[α]D20 0.0±0.1° (c=10, H2O)
Boiling point :215.2±23.0 °C(Predicted)
Density :1.2300
refractive index :1.4650 (estimate)
storage temp. :Keep in dark place,Inert atmosphere,Room temperature
solubility :210g/l; Soluble 33% in cold water, poorly in alcohol, insoluble in oils.
form :Crystalline Powder
pka :2.29(at 25℃)
color :White
PH :5.98
Odor :a very faint caramellic-sweet odor.
optical activity :+9.325 (H2O)+20.525 (5 mol dm-3 HCl)
Water Solubility :almost transparency
Merck :14,428
BRN :635889
CAS DataBase Reference :2835-81-6(CAS DataBase Reference)
NIST Chemistry Reference :DL-2-Aminobutyric acid(2835-81-6)
EPA Substance Registry System :2-Aminobutyric acid (2835-81-6)

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. 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. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P312 Call a POISON CENTER or doctor/physician if you feel unwell. P403+P233 Store in a well-ventilated place. Keep container tightly closed.