Melting point :49-51 °C(lit.)
Boiling point :165 °C10 mm Hg(lit.)
Density :1.0326 (rough estimate)
refractive index :1.5405 (estimate)
Flash point :>230 °F
storage temp. :Sealed in dry,Room Temperature
solubility :5.3g/l. Almost insoluble in water, soluble in alcohol and oils
pka :4.76(at 25℃)
form :Crystalline Powder
color :White to slightly yellow
Water Solubility :5.3 g/L at 40 ºC
BRN :638180
InChIKey :OBKXEAXTFZPCHS-UHFFFAOYSA-N
LogP :2.420
CAS DataBase Reference :1821-12-1(CAS DataBase Reference)
NIST Chemistry Reference :4-Phenylbutanoic acid(1821-12-1)
EPA Substance Registry System :4-Phenylbutyric acid (1821-12-1)

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. P280 Wear protective gloves/protective clothing/eye protection/face protection. 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. P405 Store locked up.