2-Pyrrolidone

2-Pyrrolidone
Structural formula of 2-Pyrrolidone
Structural formula of 2-Pyrrolidone
Names
Preferred IUPAC name
Pyrrolidin-2-one
Other names
  • 2-Pyrrolidone
  • 2-Pyrrolidinone
  • Aminobutyrolactam
  • Butyrolactam
  • γ-Butyrolactam
  • 2-Ketopyrrolidine
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.009.531 Edit this at Wikidata
EC Number
  • 210-483-1
49671
UNII
  • InChI=1S/C4H7NO/c6-4-2-1-3-5-4/h1-3H2,(H,5,6) checkY
    Key: HNJBEVLQSNELDL-UHFFFAOYSA-N checkY
  • InChI=1/C4H7NO/c6-4-2-1-3-5-4/h1-3H2,(H,5,6)
    Key: HNJBEVLQSNELDL-UHFFFAOYAP
  • O=C1NCCC1
Properties
C4H7NO
Molar mass 85.106 g·mol−1
Density 1.116 g/cm3[1]
Melting point 25 °C (77 °F; 298 K)[2]
Boiling point 245 °C (473 °F; 518 K)[2]
Hazards
GHS labelling:
GHS07: Exclamation mark[2]
Warning
H319[2]
P305+P351+P338[2]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
1
0
Flash point 129 °C (264 °F) (open cup)[1]
138 °C (280 °F) (closed cup)[2]
Related compounds
Related compounds
 2-Pyrrolidone-5-carboxylic acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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2-Pyrrolidone, also known as 2-pyrrolidinone or butyrolactam, is an organic compound consisting of a 5-membered lactam, making it the simplest γ-lactam. It is a colorless liquid that is miscible with water and most common organic solvents.[3]

2-Pyrrolidone itself and it various derivatives, especially N-methylpyrrolidone, have a variety of industrial uses.

  1. ^ a b Merck Index, 11th Edition, 8027
  2. ^ a b c d e f Record of 2-Pyrrolidone in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 16 March 2020.
  3. ^ Cite error: The named reference ULLMANN was invoked but never defined (see the help page).