2-Piperidinone
Names
Preferred IUPAC name
Piperidin-2-one
Other names
  • δ-Valerolactam
  • 2-Piperidinone
  • 2-Piperidone
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.010.567
UNII
  • InChI=1S/C5H9NO/c7-5-3-1-2-4-6-5/h1-4H2,(H,6,7)
    Key: XUWHAWMETYGRKB-UHFFFAOYSA-N
  • InChI=1/C5H9NO/c7-5-3-1-2-4-6-5/h1-4H2,(H,6,7)
    Key: XUWHAWMETYGRKB-UHFFFAOYAE
  • O=C1NCCCC1
Properties
C5H9NO
Molar mass 99.133 g·mol−1
Density 1.073 g/cm3[1]
Melting point 38 to 40 °C (100 to 104 °F; 311 to 313 K)[2]
Boiling point 256 °C (493 °F; 529 K)[2]
291 g/L[1]
Hazards
Flash point > 110 °C (230 °F; 383 K)[1]
Safety data sheet (SDS) MSDS
Related compounds
Related compounds
 4-Piperidinone
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

2-Piperidinone (2-piperidone or δ-valerolactam) is a chemical compound classified as a lactam. It is the monomer of Nylon 5, a polyamide. It is used as an intermediate in the preparation of other chemicals.

References

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