Article · Wikipedia archive · Last revised Jul 19, 2026

Undecanol

Undecanol, also known by its IUPAC name 1-undecanol or undecan-1-ol, and by its trivial names undecyl alcohol and hendecanol, is a fatty alcohol. Undecanol is a colorless, water-insoluble liquid of melting point 19 °C and boiling point 243 °C.

Last revised
Jul 19, 2026
Read time
≈ 2 min
Length
352 w
Citations
4
Source
Undecanol1
Skeletal formula
Skeletal formula source ↗
Space-filling formula
Space-filling formula source ↗
Names
Preferred IUPAC name
Undecan-1-ol
Other names
Undecanol, 1-Undecanol, Undecyl alcohol, 1-Hendecanol
Identifiers
3D model (JSmol)
Abbreviations UnOH
n-UnOH
nUnOH
nUnOH
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.003.609
UNII
  • InChI=1S/C11H24O/c1-2-3-4-5-6-7-8-9-10-11-12/h12H,2-11H2,1H3 X markN
    Key: KJIOQYGWTQBHNH-UHFFFAOYSA-N X markN
  • OCCCCCCCCCCC
Properties
C11H24O
Molar mass 172.312 g·mol−1
Appearance Colorless liquid
Density 0.8298 g/mL
Melting point 19 °C (66 °F; 292 K)
Boiling point 243 °C (469 °F; 516 K)
Insoluble
Solubility in Ethanol and diethyl ether Soluble
Hazards
GHS labelling:
GHS07: Exclamation markGHS09: Environmental hazard
Warning
H315, H319, H400, H411
P264, P264+P265, P273, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, P362+P364, P391, P501
NFPA 704 (fire diamond)
Flash point 108 to 113 °C (226 to 235 °F; 381 to 386 K)
253 °C (487 °F; 526 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
X markN verify (what is checkYX markN ?)

Undecanol, also known by its IUPAC name 1-undecanol or undecan-1-ol, and by its trivial names undecyl alcohol and hendecanol, is a fatty alcohol. Undecanol is a colorless, water-insoluble liquid of melting point 19 °C and boiling point 243 °C.

Industrial uses and production

It has a floral citrus like odor, and a fatty taste and is used as a flavoring ingredient in foods. It is commonly produced by the reduction of undecanal, the analogous aldehyde.2

Natural occurrence

1-Undecanol is found naturally in many foods such as fruits (including apples and bananas), butter, eggs and cooked pork.2

Toxicity

Undecanol can irritate the skin, eyes and lungs. Ingestion can be harmful, with the approximate toxicity of ethanol.3

References

References

  1. CRC Handbook of Chemistry and Physics, 60th Edition, 1980
  2. Burdock, George A. (1997). Encyclopedia of Food and Color Additives. CRC Press. p. 2879. ISBN 978-0-8493-9416-4.{{cite book}}: CS1 maint: deprecated archival service (link)
  3. "MSDS Safety Sheet". Archived from the original on 2009-01-15. Retrieved 2009-06-14.
External links