stearic acid
C18H36O2
Stearic acid has the molecular formula C18H36O2 and a molar mass of 284.5 g/mol, a melting point of 68.8 °C and a boiling point of 361 °C.
Properties
| Molecular formula | C18H36O2 |
|---|---|
| Molar mass | 284.5 g/mol |
| Exact (monoisotopic) mass | 284.27153 g/mol |
| Melting point | 68.82 °C |
| Boiling point | 361 °C |
| Density | 0.94 g/cm³ |
| logP (octanol–water) | 7.4 |
| Topological polar surface area | 37.3 Ų |
| Hydrogen-bond donors / acceptors | 1 / 2 |
| Heavy atoms | 20 |
| InChIKey | QIQXTHQIDYTFRH-UHFFFAOYSA-N |
| IUPAC name | octadecanoic acid |
Elemental composition
56 atoms across 3 elements, by mass.
| Element | Atoms | Percent by mass |
|---|---|---|
| Carbon (C) | 18 | 76.00% |
| Hydrogen (H) | 36 | 12.76% |
| Oxygen (O) | 2 | 11.25% |
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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.