Melting point :13-14 °C
Boiling point :92-95 °C11 mm Hg(lit.)
Density :1.04 g/mL at 25 °C(lit.)
vapor density :3.8 (vs air)
vapor pressure :0.1 mm Hg ( 24 °C)
refractive index :n20/D 1.512(lit.)
Flash point :201 °F
storage temp. :Store below +30°C.
solubility :52.1g/l soluble
form :Liquid
pka :-0.34±0.20(Predicted)
color :Clear colorless to yellow
PH :9-10 (100g/l, H2O, 20℃)
explosive limit :1.4-10%(V)
Water Solubility :miscible
Merck :14,7697
BRN :110513
Stability :Stable. Incompatible with strong oxidizing agents.
InChI :1S/C6H9NO/c1-2-7-5-3-4-6(7)8/h2H,1,3-5H2
InChIKey :WHNWPMSKXPGLAX-UHFFFAOYSA-N
SMILES :C=CN1CCCC1=O
LogP :0.4 at 25℃
CAS DataBase Reference :88-12-0(CAS DataBase Reference)
IARC :3 (Vol. 19, Sup 7, 71) 1999
NIST Chemistry Reference :N-Vinylpyrrolidone(88-12-0)
EPA Substance Registry System :N-Vinyl-2-pyrrolidone (88-12-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
Precautionary statements:	P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P308+P313 IF exposed or concerned: Get medical advice/attention.