octane
C8H18
Octane has the molecular formula C8H18 and a molar mass of 114.23 g/mol, a melting point of -56.7 °C and a boiling point of 125.7 °C.
Properties
| Molecular formula | C8H18 |
|---|---|
| Molar mass | 114.23 g/mol |
| Exact (monoisotopic) mass | 114.14085 g/mol |
| Melting point | -56.67 °C |
| Boiling point | 125.67 °C |
| Density | 0.7 g/cm³ |
| logP (octanol–water) | 3.9 |
| Topological polar surface area | 0 Ų |
| Hydrogen-bond donors / acceptors | 0 / 0 |
| Heavy atoms | 8 |
| InChIKey | TVMXDCGIABBOFY-UHFFFAOYSA-N |
Elemental composition
26 atoms across 2 elements, by mass.
| Element | Atoms | Percent by mass |
|---|---|---|
| Carbon (C) | 8 | 84.12% |
| Hydrogen (H) | 18 | 15.88% |
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Related compounds
Molar mass and elemental composition are computed from IUPAC 2021 conventional atomic weights. Formula, exact mass and the computed descriptors come from PubChem, which is US government work and in the public domain. Melting point, boiling point and density come from Wikidata under CC0. Properties with no figure shown are absent from those sources rather than zero.