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Molecule record

piperazin-2-one

C4H8N2O

100.12 g/mol

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Molecular properties

Formula
C4H8N2O
Molar mass
100.12 g·mol−1
Exact mass
100.0637 Da
2
PubChem CID
231360

Functional groups

Alkane / alkyl carbon
Amide
Secondary amine

Physical properties

No source-backed physical properties are curated for this molecule yet.

Common names and synonyms

  • 2-Oxopiperazine
  • 2-Oxopiperazine, 97%
  • 2-Piperazinone
  • 2-ketopiperazine
  • 2-oxo-piperazine
  • 3-oxopiperazine
  • 5625-67-2
  • 629-162-6
Show all 24 synonyms
  • AKOS000269318
  • CHEBI:46846
  • DTXCID40233850
  • DTXSID10282698
  • K9H2S9K98E
  • MFCD01318687
  • NSC-27441
  • P1867
  • Piperazine-2-one
  • Piperazinone
  • RefChem:863395
  • SCHEMBL5194
  • STK025825
  • keto piperazine
  • oxopiperazine
  • piperazinones

Structure identifiers

Canonical SMILES
O=C1CNCCN1
Isomeric SMILES
C1CNC(=O)CN1
InChI
InChI=1S/C4H8N2O/c7-4-3-5-1-2-6-4/h5H,1-3H2,(H,6,7)
InChIKey
IWELDVXSEVIIGI-UHFFFAOYSA-N
PubChem CID
231360

Spectroscopy

Tabs appear only for spectra stored with clear provenance.

Open library
No redistributable or simulated spectroscopy record is attached yet.

Simulated NMR

On-demand educational prediction for piperazin-2-one; not experimental data.

Simulated EI mass spectrum

On-demand educational fragmentation for piperazin-2-one; not experimental data.

Sources

Molecule identity

Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.

PubChem(link only)
Open source record