Molecular properties
- Formula
- C18H38
- Molar mass
- 254.50 g·mol−1
- Exact mass
- 254.2974 Da
- 0
- 0
- 0
- 0.00 Ų
- 9.3 (PubChem computed XLogP3-AA descriptor)
- CAS
- 593-45-3
- PubChem CID
- 11635
Molecule record
OCTADECANE
C18H38
254.50 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 | 9.3 | PubChem computed XLogP3-AA descriptor | PubChem(link only) |
Common names and synonyms
- 1-(4-Chlorophenyl)-1,3-dihydro-2H-indol-2-one
- 128271-18-1
- 209-790-3
- 593-45-3
- C18H38
- CCRIS 681
- CHEBI:32926
- DTXCID7027172
Show all 22 synonyms
- DTXSID9047172
- MFCD00009007
- N102P6HAIU
- NSC-4201
- Octadecan
- Octadecane, 99%
- Octadecane, analytical standard
- Octadecane, n-
- Oktadekan
- RefChem:6081
- TS Paraffin TS 8
- UNII-N102P6HAIU
- n-Octadecane
- octadecane, 14C-labeled cpd
Structure identifiers
- Canonical SMILES
- CCCCCCCCCCCCCCCCCC
- Isomeric SMILES
- CCCCCCCCCCCCCCCCCC
- InChI
- InChI=1S/C18H38/c1-3-5-7-9-11-13-15-17-18-16-14-12-10-8-6-4-2/h3-18H2,1-2H3
- InChIKey
- RZJRJXONCZWCBN-UHFFFAOYSA-N
- PubChem CID
- 11635
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 OCTADECANE; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for OCTADECANE; not experimental data.
Sources
Molecule identity
Retrieved 8/7/2026. Reuse status is summarized by the badge; open the source for full details.