Molecular properties
- Formula
- C5H8O
- Molar mass
- 84.12 g·mol−1
- Exact mass
- 84.0575 Da
- 2
- 0
- 1
- 17.10 Ų
- 0.4 (PubChem computed XLogP3-AA descriptor)
- CAS
- 120-92-3
- PubChem CID
- 8452
Molecule record
CYCLOPENTANONE
C5H8O
84.12 g/mol
Interactions
- Polarity
- Often polar; exact polarity depends on size, substitution, and ionization state.
- Acid-base behavior
- Review ionizable groups and pKa data where available; ChemForge does not infer definitive acid-base state from identity alone.
- Intermolecular forces
- Assess dispersion, dipole interactions, hydrogen bonding, and ionic character from the functional groups shown.
Functional groups
Aromatic ring
Ketone
Phenol
Physical properties
| Property | Value | Conditions | Source |
|---|---|---|---|
| Logp | 0.4 | PubChem computed XLogP3-AA descriptor | PubChem(link only) |
Common names and synonyms
- 120-92-3
- 204-435-9
- 220W81TN3S
- Adipic ketone
- Adipin keton
- Adipinketon
- CAS-120-92-3
- CHEBI:16486
Show all 22 synonyms
- CHEMBL18620
- DTXCID209154
- DTXSID3029154
- Dumasin
- FEMA NO. 3910
- Ketocyclopentane
- Ketopentamethylene
- MFCD00001409
- NSC 4122
- NSC-4122
- RefChem:5722
- cyclopentan-1-one
- cyclopentanon
- oxocyclopentane
Structure identifiers
- Canonical SMILES
- C1CCC(=O)C1
- Isomeric SMILES
- C1CCC(=O)C1
- InChI
- InChI=1S/C5H8O/c6-5-3-1-2-4-5/h1-4H2
- InChIKey
- BGTOWKSIORTVQH-UHFFFAOYSA-N
- PubChem CID
- 8452
Spectroscopy
Tabs appear only for spectra stored with clear provenance.
Simulated FTIR trace
Predicted FTIR / %T
4 cm-1 resolution / deterministic instrument profile
Hover for cursor
Peak assignments
3350 cm−1broad O-H (simulated)
1715 cm−1C=O ketone (simulated)
3030 cm−1aromatic C-H (simulated)
1600 cm−1aromatic C=C (simulated)
2960 cm−1sp3 C-H (simulated)
Simulated NMR
On-demand educational prediction for CYCLOPENTANONE; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for CYCLOPENTANONE; not experimental data.
Sources
Molecule identity
Retrieved 8/7/2026. Reuse status is summarized by the badge; open the source for full details.
simulated IR
ChemForge original educational simulation.