Molecular properties
- Formula
- CH2O
- Molar mass
- 30.03 g·mol−1
- Exact mass
- 30.0106 Da
- 1
- 0
- 1
- 17.10 Ų
- 1.2 (PubChem computed XLogP3-AA descriptor)
- CAS
- 50-00-0
- PubChem CID
- 712
Molecule record
formaldehyde
CH2O
30.03 g/mol
Interactions
- Polarity
- Often weakly polar or nonpolar unless other structural features dominate.
- 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
No functional-group assignment has been curated yet.
Physical properties
| Property | Value | Conditions | Source |
|---|---|---|---|
| Logp | 1.2 | PubChem computed XLogP3-AA descriptor | PubChem(link only) |
Common names and synonyms
- 50-00-0
- Aldehyde formique
- FYDE
- Fannoform
- Formaldehyd
- Formaldehyde, gas
- Formalina
- Formaline
Show all 23 synonyms
- Formalith
- Formic aldehyde
- Karsan
- Lysoform
- Methaldehyde
- Methyl aldehyde
- Methylene oxide
- Morbicid
- Oxomethane
- Oxomethylene
- Oxymethylene
- Superlysoform
- formalin
- formol
- methanal
Structure identifiers
- Canonical SMILES
- C=O
- Isomeric SMILES
- C=O
- InChI
- InChI=1S/CH2O/c1-2/h1H2
- InChIKey
- WSFSSNUMVMOOMR-UHFFFAOYSA-N
- PubChem CID
- 712
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 formaldehyde; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for formaldehyde; not experimental data.
Sources
Molecule identity
Retrieved 8/7/2026. Reuse status is summarized by the badge; open the source for full details.