Melting point :208 °C (dec.) (lit.)
Boiling point :215.41°C (rough estimate)
Density :1.1808 (rough estimate)
refractive index :1.4538 (estimate)
storage temp. :Keep in dark place,Inert atmosphere,Room temperature
solubility :Methanol, Water
form :Crystalline Powder
pka :2.35±0.20(Predicted)
color :White to off-white
Water Solubility :SOLUBLE
Merck :14,7780
BRN :80809
CAS DataBase Reference :609-36-9(CAS DataBase Reference)
NIST Chemistry Reference :DL-Proline(609-36-9)
EPA Substance Registry System :Proline (609-36-9)

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:	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. P321 Specific treatment (see … on this label).