Undecylic acid

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Undecylic acid
Undecylic acid.png
IUPAC name
Undecanoic acid
Other names
Hendecanoic acid
3D model (JSmol)
ECHA InfoCard 100.003.604
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
Main hazards Corrosive
R-phrases (outdated) R36/37/38
S-phrases (outdated) S26 S36
NFPA 704
Flammability code 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g., diesel fuel Health code 3: Short exposure could cause serious temporary or residual injury. E.g., chlorine gas Reactivity (yellow): no hazard code Special hazards (white): no codeNFPA 704 four-colored diamond
Flash point 113 °C (235 °F; 386 K)
Related compounds
Related fatty acids
Decanoic acid, Lauric acid
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Undecylic acid (systematically named undecanoic acid) is a naturally occurring carboxylic acid with chemical formula CH3(CH2)9COOH. It is often used as an antifungal agent, to treat ringworm and athlete's foot, for example.[medical citation needed] Like decanoic acid, it has a distinctive, unpleasant odor.