# Undecylic acid

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Undecylic acid Names IUPAC name Undecanoic acid Other names Hendecanoic acid Identifiers CAS Number 112-37-8 Y 3D model (JSmol) Interactive image ChEBI CHEBI:32368 Y ChEMBL ChEMBL108030 Y ChemSpider 7888 Y ECHA InfoCard 100.003.604 EC Number 203-964-2 IUPHAR/BPS 5533 KEGG C17715 PubChem CID 8180 UNII 138ON3IIQG CompTox Dashboard (EPA) DTXSID8021690 InChI InChI=1S/C11H22O2/c1-2-3-4-5-6-7-8-9-10-11(12)13/h2-10H2,1H3,(H,12,13) Y Key: ZDPHROOEEOARMN-UHFFFAOYSA-N Y SMILES O=C(O)CCCCCCCCCC Properties Chemical formula C11H22O2 Molar mass 186.29 g/mol Appearance Colourless crystals Density 0.89 g/cm3 Melting point 28.6 °C (83.5 °F; 301.8 K) Boiling point 284 °C (543 °F; 557 K) Viscosity mPa·s Structure Dipole moment D Hazards Occupational safety and health (OHS/OSH): Main hazards Corrosive GHS labelling: Pictograms Signal word Warning Hazard statements H315, H319, H335 Precautionary statements P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501 NFPA 704 (fire diamond) 3 2 Flash point 113 °C (235 °F; 386 K) Related compounds Related fatty acids Decanoic acid, Lauric acid Related compounds Undecanol 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

Chemical compound

**Undecylic acid** (systematically named **undecanoic acid**) is a [carboxylic acid](/source/Carboxylic_acid) with [chemical formula](/source/Chemical_formula) [C](/source/Carbon)[H](/source/Hydrogen)3(CH2)9C[O](/source/Oxygen)OH. It is often used as an antifungal agent, to treat ringworm and athlete's foot, for example.[1] Like [decanoic acid](/source/Decanoic_acid), it has a distinctive, unpleasant odor.

## See also

- [List of saturated fatty acids](/source/List_of_saturated_fatty_acids)

## References

1. **[^](#cite_ref-1)** Voicu, Raluca; Boukherroub, Rabah; Bartzoka, Vasiliki; Ward, Tim; Wojtyk, James T. C.; Wayner, Danial D. M. (2004-12-21). "Formation, characterization, and chemistry of undecanoic acid-terminated silicon surfaces: patterning and immobilization of DNA". *Langmuir: The ACS Journal of Surfaces and Colloids*. **20** (26): 11713–11720. [doi](/source/Doi_(identifier)):[10.1021/la047886v](https://doi.org/10.1021%2Fla047886v). [ISSN](/source/ISSN_(identifier)) [0743-7463](https://search.worldcat.org/issn/0743-7463). [PMID](/source/PMID_(identifier)) [15595802](https://pubmed.ncbi.nlm.nih.gov/15595802).

## External links

- The dictionary definition of [*undecylic acid*](https://en.wiktionary.org/wiki/Special:Search/undecylic_acid) at Wiktionary

v t e Lipids: fatty acids Saturated Acetic (C2) Propionic (C3) Butyric (C4) Valeric (C5) Caproic (C6) Enanthic (C7) Caprylic (C8) Pelargonic (C9) Capric (C10) Undecylic (C11) Lauric (C12) Tridecylic (C13) Myristic (C14) Pentadecylic (C15) Palmitic (C16) Margaric (C17) Stearic (C18) Nonadecylic (C19) Arachidic (C20) Heneicosylic (C21) Behenic (C22) Tricosylic (C23) Lignoceric (C24) Pentacosylic (C25) Cerotic (C26) Carboceric (C27) Montanic (C28) Nonacosylic (C29) Melissic (C30) Hentriacontylic (C31) Lacceroic (C32) Psyllic (C33) Geddic (C34) Ceroplastic (C35) Hexatriacontylic (C36) Heptatriacontanoic (C37) Octatriacontanoic (C38) Nonatriacontanoic (C39) Tetracontanoic (C40) ω−3 Unsaturated Octenoic (8:1) Decenoic (10:1) Decadienoic (10:2) Lauroleic (12:1) Laurolinoleic (12:2) Myristovaccenic (14:1) Myristolinoleic (14:2) Myristolinolenic (14:3) Palmitolinolenic (16:3) Palmitidonic (16:4) α-Linolenic (18:3) Stearidonic (18:4) α-Parinaric (18:4) Dihomo-α-linolenic (20:3) Eicosatetraenoic (20:4) Eicosapentaenoic (20:5) Clupanodonic (22:5) Docosahexaenoic (22:6) 9,12,15,18,21-Tetracosapentaenoic (24:5) 6,9,12,15,18,21-Tetracosahexaenoic (24:6) ω−5 Unsaturated Myristoleic (14:1) Palmitovaccenic (16:1) α-Eleostearic (18:3) β-Eleostearic (trans-18:3) Punicic (18:3) 7,10,13-Octadecatrienoic (18:3) 9,12,15-Eicosatrienoic (20:3) β-Eicosatetraenoic (20:4) ω−6 Unsaturated Obtusilic acid (10:1) 8-Tetradecenoic (14:1) 12-Octadecenoic (18:1) Linoleic (18:2) Linolelaidic (trans-18:2) γ-Linolenic (18:3) Calendic (18:3) Pinolenic (18:3) Dihomo-linoleic (20:2) Dihomo-γ-linolenic (20:3) Sciadonic (20:3) Arachidonic (20:4) Adrenic (22:4) Osbond (22:5) ω−7 Unsaturated Palmitoleic (16:1) Vaccenic (18:1) Rumenic (18:2) Paullinic (20:1) 7,10,13-Eicosatrienoic (20:3) ω−9 Unsaturated Hypogeic (16:1) Oleic (18:1) Elaidic (trans-18:1) Gondoic (20:1) Erucic (22:1) Nervonic (24:1) 8,11-Eicosadienoic (20:2) Mead (20:3) Ximenic (26:1) ω−10 Unsaturated Sapienic (16:1) ω−11 Unsaturated Gadoleic (20:1) Cetoleic (22:1) Lumequeic (30:1) ω−12 Unsaturated 4-Hexadecenoic (16:1) Petroselinic (18:1) 8-Eicosenoic (20:1)

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Adapted from the Wikipedia article [Undecylic acid](https://en.wikipedia.org/wiki/Undecylic_acid) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Undecylic_acid?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.