Boiling point :137 °C / 28mmHg
Density :0,96 g/cm³
vapor pressure :13Pa at 25℃
refractive index :1.4640 to 1.4660
storage temp. :under inert gas (nitrogen or Argon) at 2-8°C
solubility :Chloroform (Slightly)
pka :-0.41±0.20(Predicted)
form :Oil
color :Colourless
Water Solubility :1000g/L at 20℃
InChI :InChI=1S/C8H15NO/c1-2-3-6-9-7-4-5-8(9)10/h2-7H2,1H3
InChIKey :BNXZHVUCNYMNOS-UHFFFAOYSA-N
SMILES :N1(CCCC)CCCC1=O
LogP :1.265 at 20℃
CAS DataBase Reference :3470-98-2(CAS DataBase Reference)
NIST Chemistry Reference :2-Pyrrolidinone, 1-butyl-(3470-98-2)
EPA Substance Registry System :2-Pyrrolidinone, 1-butyl- (3470-98-2)

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.