Molecular properties
- Formula
- CH2O2
- Molar mass
- 46.02 g·mol−1
- Exact mass
- 46.0055 Da
- 1
- 1
- 2
- 37.30 Ų
- -0.2 (PubChem computed XLogP3-AA descriptor)
- CAS
- 64-18-6
- PubChem CID
- 284
Molecule record
Formic acid
CH2O2
46.02 g/mol
Show IUPAC name
IUPAC name
Methanoic acid
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
Alcohol
Carboxylic acid
Physical properties
| Property | Value | Conditions | Source |
|---|---|---|---|
| Logp | -0.2 | PubChem computed XLogP3-AA descriptor | PubChem(link only) |
Common names and synonyms
- 64-18-6
- AI3-24237
- Acide formique
- Acido formico
- Add-F
- Ameisensaeure
- Aminic acid
- Bilorin
Show all 22 synonyms
- C1 acid
- Collo-bueglatt
- Collo-didax
- FEMA No. 2487
- Formicum acidum
- Formira
- Formisoton
- Formylic acid
- Hydrogen carboxylic acid
- Kwas metaniowy
- Kyselina mravenci
- Mierenzuur
- Myrmicyl
- RCRA waste number U123
Structure identifiers
- Canonical SMILES
- C(=O)O
- Isomeric SMILES
- C(=O)O
- InChI
- InChI=1S/CH2O2/c2-1-3/h1H,(H,2,3)
- InChIKey
- BDAGIHXWWSANSR-UHFFFAOYSA-N
- PubChem CID
- 284
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)
3000 cm−1broad acid O-H (simulated)
1710 cm−1C=O acid (simulated)
2960 cm−1sp3 C-H (simulated)
Simulated NMR
On-demand educational prediction for Formic acid; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for Formic acid; 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.