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

Undecylic acid (systematically named undecanoic acid) is a 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.^[1] Like decanoic acid, it has a distinctive, unpleasant odor.