2-Nonenal

2-Nonenal is an unsaturated aldehyde. The colorless liquid is an important aroma component of aged beer[2] and buckwheat.[3]

2-Nonenal
Skeletal formula of 2-nonenal
Ball-and-stick model of the 2-nonenal molecule
Names
Preferred IUPAC name
Non-2-enal
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.017.784
EC Number
  • 242-609-6 (trans)
  • 219-562-5
UNII
  • InChI=1S/C9H16O/c1-2-3-4-5-6-7-8-9-10/h7-9H,2-6H2,1H3/b8-7+ checkY
    Key: BSAIUMLZVGUGKX-BQYQJAHWSA-N checkY
  • InChI=1/C9H16O/c1-2-3-4-5-6-7-8-9-10/h7-9H,2-6H2,1H3/b8-7+
    Key: BSAIUMLZVGUGKX-BQYQJAHWBS
  • O=C/C=C/CCCCCC
Properties
C9H16O
Molar mass 140.226 g·mol−1
Appearance Colorless liquid
Boiling point 188.00 to 190.00 °C (370.40 to 374.00 °F; 461.15 to 463.15 K) at 760.00 mmHg
Hazards[1]
GHS labelling:
GHS07: Exclamation mark
Warning
H315
P264, P280, P302+P352, P321, P332+P313, P362
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond
1
2
0
Flash point 79 °C (174 °F; 352 K)
Safety data sheet (SDS) External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Odor characteristics

The odor of this substance is perceived as orris, fat and cucumber.[4] Its odor has been associated with human body odor alterations during aging.[5]

References
  1. "2-Nonenal". pubchem.ncbi.nlm.nih.gov.
  2. Santos, J. R.; Carneiro, J. R.; Guido, L. F.; Almeida, P. J.; Rodrigues, J. A.; Barros, A. A. (2008). "Determination of E-2-nonenal by high-performance liquid chromatography with UV detection - Assay for the evaluation of beer ageing". Journal of Chromatography A. 985 (1–2): 395–402. doi:10.1016/S0021-9673(02)01396-1. PMID 12580508.
  3. Janeš, D.; Kantar, D.; Kreft, S.; Prosen, H. (2008). "Identification of buckwheat (Fagopyrum esculentum Moench) aroma compounds with GC-MS". Food Chemistry. 112 (1): 120–4. doi:10.1016/j.foodchem.2008.05.048.
  4. "2-nonenal CAS 60784-31-8". Flavornet.
  5. Haze, S.; Gozu, Y.; Nakamura, S.; Kohno, Y.; Sawano, K.; Ohta, H.; Yamazaki, K. (2001). "2-Nonenal Newly Found in Human Body Odor Tends to Increase with Aging". Journal of Investigative Dermatology. 116 (4): 520–4. doi:10.1046/j.0022-202x.2001.01287.x. PMID 11286617.

Further reading
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