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Decanal structure.png
CAS number 112-31-2 YesY
PubChem 8175
ChemSpider 7883 YesY
KEGG C12307 YesY
ChEBI CHEBI:31457 YesY
Jmol-3D images Image 1
Molecular formula C10H20O
Molar mass 156.2
Appearance colourless liquid
Density 0.83 g/mL
Boiling point 207 to 209 °C (405 to 408 °F; 480 to 482 K)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Decanal is an organic compound with the chemical formula C9H19CHO. It is the simplest ten-carbon aldehyde. Decanal occurs naturally and is used in fragrances and flavoring.[1] Decanal occurs in nature and is an important component in citrus along with octanal, citral, and sinensal. Decanal is also an important component of buckwheat odour.[2]

Decanal can be prepared by oxidation of the related alcohol decanol. [3]


For safety information see the MSDS.[4]


  1. ^ Rychlik, Schieberle & Grosch Compilation of Odor Thresholds, Odor Qualities and Retention Indices of Key Food Odorants, Lichtenbergstraße, Germany, 1998.
  2. ^ Janes D, Kantar D, Kreft S, Prosen H (2008). "Identification of buckwheat (Fagopyrum esculentum Moench) aroma compounds with GC-MS". Food Chemistry 112: 120. doi:10.1016/j.foodchem.2008.05.048. 
  3. ^ R. W. Ratcliffe (1988), "Oxidation with the Chromium Trioxide-Pridine Complex Prepared in situ: 1- Decanal", Org. Synth. ; Coll. Vol. 6: 373 
  4. ^ Safety (MSDS) data for n-decanal