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2-Nonenal

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

2-Nonenal
Names


Preferred IUPAC name Non-2-enal
Identifiers
CAS Number	18829-56-6 (trans)^Y 60784-31-8 (cis)^Y 2463-53-8 (cis/trans mixture)^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:142592
ChEMBL	ChEMBL450072^Y
ChemSpider	4446456^Y
ECHA InfoCard	100.017.784
EC Number	242-609-6 (trans) 219-562-5
PubChem CID	5283335
UNII	8VEO649985 (trans)^Y ARM1W3309Z (cis)^Y 93C6BZW2TV (cis/trans mixture)^Y
CompTox Dashboard (EPA)	DTXSID3047219
InChI InChI=1S/C9H16O/c1-2-3-4-5-6-7-8-9-10/h7-9H,2-6H2,1H3/b8-7+^Y Key: BSAIUMLZVGUGKX-BQYQJAHWSA-N^Y InChI=1/C9H16O/c1-2-3-4-5-6-7-8-9-10/h7-9H,2-6H2,1H3/b8-7+ Key: BSAIUMLZVGUGKX-BQYQJAHWBS
SMILES O=C/C=C/CCCCCC
Properties
Chemical formula	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:
Pictograms
Signal word	Warning
Hazard statements	H315
Precautionary statements	P264, P280, P302+P352, P321, P332+P313, P362
NFPA 704 (fire 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). Y verify (what is ^YN ?) Infobox references

Odor characteristics

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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

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^ "2-Nonenal". pubchem.ncbi.nlm.nih.gov.

^ 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.

^ 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.

^ "2-nonenal CAS 60784-31-8". Flavornet.

^ 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.

2-Nonenal

Odor characteristics

References

Further reading

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