Melting point :156-158°C
Boiling point :367.89°C (rough estimate)
Density :1.1376 (rough estimate)
refractive index :1.4620 (estimate)
Flash point :9℃
storage temp. :-20°C
pka :8.0(at 25℃)
color :bitter crystals or leaflets from water
Water Solubility :<0.1 g/100 mL at 18.5 ºC
Stability :Stable. Incompatible with strong oxidizing agents. Hygroscopic.
CAS DataBase Reference :57-43-2(CAS DataBase Reference)
NIST Chemistry Reference :Barbituric acid, 5-ethyl-5-isoamyl-(57-43-2)
EPA Substance Registry System :Amobarbital (57-43-2)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501 H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:	P202 Do not handle until all safety precautions have been read and understood. 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. P273 Avoid release to the environment. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.