Melting point :133 °C(lit.)
Boiling point :300 °C(lit.)
Density :1.2475
refractive index :1.5049 (estimate)
FEMA :2288 | CINNAMIC ACID
Flash point :>230 °F
storage temp. :Sealed in dry,Room Temperature
solubility :Chloroform (Slightly), Methanol (Slightly)
form :Solid
pka :pK (25°) 4.46
color :White to Off-White
PH :3.76(1 mM solution);3.23(10 mM solution);2.72(100 mM solution)
Odor :at 100.00 %. balsam sweet storax
Odor Type :balsamic
Water Solubility :511.2mg/L(25 ºC)
JECFA Number :657
Henry's Law Constant :5.8×10² mol/(m³Pa) at 25℃, Duchowicz et al. (2020)
Stability :Stable. Combustible. Incompatible with strong oxidizing agents.
Cosmetics Ingredients Functions :SKIN CONDITIONING
PERFUMING LogP :2.13
CAS DataBase Reference :621-82-9(CAS DataBase Reference)
NIST Chemistry Reference :2-Propenoic acid, 3-phenyl-(621-82-9)
EPA Substance Registry System :Cinnamic acid (621-82-9)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 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. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.