Molecular properties
- Formula
- CO
- Molar mass
- 28.01 g·mol−1
- Exact mass
- 27.9949 Da
- 2
- PubChem CID
- 281
Molecule record
carbon monoxide
CO
28.01 g/mol
Loading structure
Functional groups
No functional-group assignment has been curated yet.
Physical properties
No source-backed physical properties are curated for this molecule yet.
Common names and synonyms
- 211-128-3
- 630-08-0
- 7U1EE4V452
- CHEBI:17245
- Carbon oxide (CO)
- Carbone (oxyde de)
- Carboneum oxygenisatum
- Carbonic oxide
Show all 24 synonyms
- Carbonio (ossido di)
- DTXCID407273
- DTXSID5027273
- Exhaust gas
- Flue gas
- Kohlenmonoxid
- Kohlenoxyd
- Koolmonoxyde
- Monoxide, Carbon
- Oxyde de carbone
- RefChem:6405
- Wegla tlenek
- carbon monooxide
- carbon monooxide;carbon monoxide;carbon(II) oxide
- carbon(II) oxide
- monoxide
Structure identifiers
- Canonical SMILES
- [C-]#[O+]
- Isomeric SMILES
- [C-]#[O+]
- InChI
- InChI=1S/CO/c1-2
- InChIKey
- UGFAIRIUMAVXCW-UHFFFAOYSA-N
- PubChem CID
- 281
Spectroscopy
Tabs appear only for spectra stored with clear provenance.
No redistributable or simulated spectroscopy record is attached yet.
Simulated NMR
On-demand educational prediction for carbon monoxide; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for carbon monoxide; not experimental data.
Sources
Molecule identity
Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.