Melting point :40-42 °C(lit.)
Boiling point :250 °C150 mm Hg(lit.)
alpha :[α]D20 -18～-22° (c=1, C2H5OH)
Density :1.1102 (rough estimate)
refractive index :1.7110 (estimate)
Flash point :>230 °F
storage temp. :Sealed in dry,2-8°C
solubility :Chloroform (Sparingly), DMSO (Slightly), Methanol (Sparingly)
form :Solid
pka :4.72±0.12(Predicted)
color :Colourless to Very Dark Orange Oil
optical activity :[α]/D -21±2°, c = 1 in ethanol
Water Solubility :Not miscible or difficult to mix in water. Soluble in dimethyl sulfoxide (100 mM), ethanol (50 mg/ml, yielding a clear, faint yellow to yellow solution), methanol and chloroform.
Merck :14,2553
BRN :83099
Stability :Stable. Incompatible with strong oxidizing agents. May be heat sensitive - store cold.
EPA Substance Registry System :Cotinine (486-56-6)

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:	P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.