Molecular properties
- Formula
- C18H36O2
- Molar mass
- 284.50 g·mol−1
- Exact mass
- 284.2715 Da
- 1
- 1
- 2
- 37.30 Ų
- 7.4 (PubChem computed XLogP3-AA descriptor)
- CAS
- 57-11-4
- PubChem CID
- 5281
Molecule record
stearic acid
C18H36O2
284.50 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 | 7.4 | PubChem computed XLogP3-AA descriptor | PubChem(link only) |
Common names and synonyms
- 1-Heptadecanecarboxylic acid
- 57-11-4
- Century 1240
- Cetylacetic acid
- Formula 300
- Glycon DP
- Glycon S-80
- Glycon S-90
Show all 23 synonyms
- Glycon TP
- Humko Industrene R
- Hydrofol 1895
- Hydrofol Acid 150
- Hystrene 7018
- Hystrene 9718
- Industrene R
- Octadecanoic acid
- Octadecansaeure
- Pearl stearic
- Stearex Beads
- Stearinsaeure
- Stearophanic acid
- Vanicol
- n-Octadecanoic acid
Structure identifiers
- Canonical SMILES
- CCCCCCCCCCCCCCCCCC(=O)O
- Isomeric SMILES
- CCCCCCCCCCCCCCCCCC(=O)O
- InChI
- InChI=1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20)
- InChIKey
- QIQXTHQIDYTFRH-UHFFFAOYSA-N
- PubChem CID
- 5281
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 stearic acid; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for stearic 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.