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CAS number 124-19-6 YesY
PubChem 31289
ChemSpider 29029 YesY
Jmol-3D images Image 1
Molecular formula C9H18O
Molar mass 142.23862
Appearance Colourless liquid
Density 0.827
Melting point −18 °C (0 °F; 255 K)
Boiling point 191 °C (376 °F; 464 K)
Solubility in water Insoluble
Related compounds
Related aldehydes Octanal


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

Nonanal, also called nonanaldehyde, pelargonaldehyde or Aldehyde C-9, is an alkyl aldehyde. A colourless, oily liquid, nonanal is a component of perfumes. Although it occurs in several natural oils, it is produced commercially by hydroformylation of 1-octene.[2]


Nonanal has been identified as a compound that attracts Culex mosquitoes.[3][4] Nonanal acts synergistically with carbon dioxide.[5]


  1. ^ n-Nonaldehyde at
  2. ^ Christian Kohlpaintner, Markus Schulte, Jürgen Falbe, Peter Lappe, Jürgen Weber (2005), "Aldehydes, Aliphatic", Ullmann's Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH, doi:10.1002/14356007.a01_321.pub2 
  3. ^ UC Davis News & Information :: UC Davis Researchers Identify Dominant Chemical That Attracts Mosquitoes to Humans. (2009-10-26). Retrieved on 2011-01-03.
  4. ^ Syed, Z.; Leal, W. S. (2009). "Acute olfactory response of Culex mosquitoes to a human- and bird-derived attractant". Proceedings of the National Academy of Sciences 106 (44): 18803–8. doi:10.1073/pnas.0906932106. PMC 2767364. PMID 19858490.  edit
  5. ^ Scientists Identify Key Smell that Attracts Mosquitoes to Humans – US News and World Report. (2009-10-28). Retrieved on 2011-01-03.