Boiling point :148-150 °C(Press: 20 Torr)
Density :0.9608 g/cm3(Temp: 18 °C)
vapor pressure :3.47-21.3hPa at 20-50℃
storage temp. :Sealed in dry,Room Temperature
pka :2.80±0.10(Predicted)
Appearance :Colorless to light yellow Liquid
InChI :InChI=1S/C5H8N2/c1-5-3-6-7(2)4-5/h3-4H,1-2H3
InChIKey :SZQCPPRPWDXLMM-UHFFFAOYSA-N
SMILES :N1(C)C=C(C)C=N1
Surface tension :68.8mN/m at 1g/L and 20℃

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.