Undecanal

Undecanal

Names
Other names Undecyl aldehyde
Identifiers
CAS Number	112-44-7
ChEBI	CHEBI:46202
ChemSpider	7894
Jmol interactive 3D	Image
InChI InChI=1S/C11H22O/c1-2-3-4-5-6-7-8-9-10-11-12/h11H,2-10H2,1H3 Key: KMPQYAYAQWNLME-UHFFFAOYSA-N InChI=1/C11H22O/c1-2-3-4-5-6-7-8-9-10-11-12/h11H,2-10H2,1H3 Key: KMPQYAYAQWNLME-UHFFFAOYAE
SMILES O=CCCCCCCCCCC
Properties
Chemical formula	C11H22O
Molar mass	170.30 g·mol^−1
Appearance	colourless oil
Density	0.825 g cm^−3
Melting point	−2 °C (28 °F; 271 K)
Boiling point	120 to 122 °C (248 to 252 °F; 393 to 395 K)
Hazards
EU classification (DSD)	Xi
R-phrases	R36/37/38
S-phrases	S26
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Undecanal, also known as undecyl aldehyde, is an organic compound with the chemical formula C₁₀H₂₁CHO. It is an eleven-carbon aldehyde. A colourless, oily liquid, undecanal is a component of perfumes. Although it occurs naturally in citrus oils, it is produced commercially by hydroformylation of decene.^[1]

It has been registered under the EU REACH scheme at >1000 tonnes by Oxea, which confirms the status as irritant.^[2]

References

1. Christian Kohlpaintner, Markus Schulte, Jürgen Falbe, Peter Lappe, Jürgen Weber, Guido D. Frey (2005), "Aldehydes, Aliphatic", Ullmann's Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH, doi:10.1002/14356007.a01_321.pub3
2. http://apps.echa.europa.eu/registered/data/dossiers/DISS-9d84f5d2-6b83-52c9-e044-00144f67d249/DISS-9d84f5d2-6b83-52c9-e044-00144f67d249_DISS-9d84f5d2-6b83-52c9-e044-00144f67d249.html