Undecane

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{{#if:Gasoline-like to OdorlessGasoline-like to OdorlessColorless liquid740 mg mL−16.31255 Pa[2]5.4 nmol Pa−1 kg−11.417246.6248.22411|! style="background: #F8EABA; text-align: center;" colspan="2" | Properties
Undecane
Skeletal formula of undecane
Skeletal formula of undecane with all implicit carbons shown, and all explicit hydrogens added
Ball and stick model of undecane
IUPAC name

Undecane[1]

Identifiers
CAS number 1120-21-4 7pxY
PubChem 14257
ChemSpider 13619 7pxY
UNII JV0QT00NUE 7pxY
EC number 214-300-6
UN number 2330
MeSH undecane
ChEBI CHEBI:46342 7pxY
ChEMBL CHEMBL132474 7pxY
RTECS number YQ1525000
Beilstein Reference 1697099
Jmol-3D images Image 1
Molecular formula C11H24
Molar mass 156.31 g mol−1
Thermochemistry
Std enthalpy of
formation ΔfHo298 		−329.8–−324.6 kJ mol−1
Std enthalpy of
combustion ΔcHo298 		−7.4339–−7.4287 MJ mol−1
Standard molar
entropy So298 		458.15 J K−1 mol−1
Specific heat capacity, C 345.05 J K−1 mol−1
Hazards
GHS pictograms The skull-and-crossbones pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The health hazard pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word DANGER
GHS hazard statements H304, H315, H319, H331, H335
GHS precautionary statements P261, P301+310, P305+351+338, P311, P331
EU classification Harmful Xn
R-phrases R36/37/38, R65
S-phrases S26, S36
Flash point 62.0 °C
Related compounds
Related alkanes
 14pxY (verify) (what is: 10pxY/10pxN?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Undecane (also known as hendecane) is a liquid alkane hydrocarbon with the chemical formula CH3(CH2)9CH3. It is used as a mild sex attractant for various types of moths and cockroaches, and an alert signal for a variety of ants.[3] It has 159 isomers.

Undecane may also be used as an internal standard in gas chromatography when working with other hydrocarbons. Since the boiling point of undecane (196°C) is well known, it may be used as a comparison for retention times in a gas chromatograph for molecules whose structure has been freshly elucidated. For example, if one is working with a 50 m crosslinked methyl silicone capillary column with an oven temperature increasing slowly, beginning around 60°C, an 11-carbon molecule like undecane may be used as an internal standard to be compared with the retention times of other 10-, 11-, or 12- carbon molecules, depending on their structures.

See also

References

  1. ↑ "undecane - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 16 September 2004. Identification and Related Records. http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=14257&loc=ec_rcs. Retrieved 5 January 2012.
  2. ↑ Script error
  3. ↑ Hölldobler B, Wilson EO (1990). The Ants. Harvard University Press. ISBN 0-674-04075-9, p. 287

External links

  • Undecane at Dr. Duke's Phytochemical and Ethnobotanical Databases
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ar:أونديكان

az:Undekan cs:Undekan de:Undecan es:Undecano fa:اوندکان fr:Undécane id:Undekana it:Undecano ku:Ûndêkan lv:Undekāns hu:Undekán nl:Undecaan ja:ウンデカン pl:Undekan pt:Undecano ru:Ундекан fi:Undekaani sv:Undekan uk:Ундекан vi:Undecan zh:十一烷


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