Molecular properties
- Formula
- C18H30O2
- Molar mass
- 278.40 g·mol−1
- Exact mass
- 278.2246 Da
- 4
- 1
- 2
- 37.30 Ų
- 5.9 (PubChem computed XLogP3-AA descriptor)
- CAS
- 463-40-1
- PubChem CID
- 5280934
Molecule record
linolenic acid
C18H30O2
278.40 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
Alkene
Carboxylic acid
Physical properties
| Property | Value | Conditions | Source |
|---|---|---|---|
| Logp | 5.9 | PubChem computed XLogP3-AA descriptor | PubChem(link only) |
Common names and synonyms
- (9,12,15)-linolenic acid
- (9Z,12Z,15Z)-Octadecatrienoic acid
- (9Z,12Z,15Z)-octadeca-9,12,15-trienoic acid
- (Z,Z,Z)-9,12,15-Octadecatrienoic acid
- (Z,Z,Z)-Octadeca-9,12,15-trienoic acid
- 0RBV727H71
- 463-40-1
- 9,12,15-Octadecatrienoic acid, (9Z,12Z,15Z)-
Show all 21 synonyms
- 9,12,15-Octadecatrienoic acid, (Z,Z,Z)-
- 9-cis,12-cis,15-cis-Octadecatrienoic acid
- DTXSID7025506
- Kortacid 1499
- Linolenic acid, crude
- NSC-2042
- Prifrac 2942
- all-cis-9,12,15-Octadecatrienoic acid
- alpha Linolenic Acid
- alpha-Linolenic acid
- cis,cis,cis-9,12,15-Octadecatrienoic acid
- cis-9,12,15-octadecatrienoic acid
- cis-delta9,12,15-Octadecatrienoic acid
Structure identifiers
- Canonical SMILES
- CC/C=C\C/C=C\C/C=C\CCCCCCCC(=O)O
- Isomeric SMILES
- CC/C=C\C/C=C\C/C=C\CCCCCCCC(=O)O
- InChI
- InChI=1S/C18H30O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h3-4,6-7,9-10H,2,5,8,11-17H2,1H3,(H,19,20)/b4-3-,7-6-,10-9-
- InChIKey
- DTOSIQBPPRVQHS-PDBXOOCHSA-N
- PubChem CID
- 5280934
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)
1645 cm−1C=C alkene (simulated)
2960 cm−1sp3 C-H (simulated)
Simulated NMR
On-demand educational prediction for linolenic acid; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for linolenic 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.