Molecular properties
- Formula
- C4H8O2
- Molar mass
- 88.11 g·mol−1
- Exact mass
- 88.0524 Da
- 1
- 1
- 2
- 37.30 Ų
- 0.8 (PubChem computed XLogP3-AA descriptor)
- CAS
- 107-92-6
- PubChem CID
- 264
Molecule record
butyric acid
C4H8O2
88.11 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
Alcohol
Carboxylic acid
Physical properties
| Property | Value | Conditions | Source |
|---|---|---|---|
| Logp | 0.8 | PubChem computed XLogP3-AA descriptor | PubChem(link only) |
Common names and synonyms
- 1-Butyric acid
- 1-butanoic acid
- 1-propanecarboxylic acid
- 107-92-6
- 40UIR9Q29H
- Butanic acid
- Buttersaeure
- Butyricum acidum
Show all 23 synonyms
- CHEBI:30772
- DTXCID401515
- DTXSID8021515
- FEMA No. 2221
- FEMA Number 2221
- Kyselina maselna
- NORMAL BUTYRIC ACID
- NSC-8415
- NSC8415
- Propanecarboxylic acid
- butanoic acid
- ethylacetic acid
- n-Butanoic acid
- n-Butyric acid
- propylformic acid
Structure identifiers
- Canonical SMILES
- CCCC(=O)O
- Isomeric SMILES
- CCCC(=O)O
- InChI
- InChI=1S/C4H8O2/c1-2-3-4(5)6/h2-3H2,1H3,(H,5,6)
- InChIKey
- FERIUCNNQQJTOY-UHFFFAOYSA-N
- PubChem CID
- 264
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 butyric acid; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for butyric 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.