Arachidic acid
IUPAC name	icosanoic acid
Other names	eicosanoic acid n-eicosanoic acid arachidic acid arachic acid
Identifiers
CAS number	[506-30-9]
PubChem	10467
SMILES	CCCCCCCCCCCCCCCCCCCC(=O)O
Properties
Molecular formula	C20H40O2
Molar mass	312.5304
Appearance	white crystaline solid
Density	0.8240 g/cm3
Melting point	75.5 °C
Boiling point	328 °C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references

Arachidic acid, also called eicosanoic acid, is a saturated fatty acid found in peanut oil. Its name derives from the Latin arachis — peanut. It can be formed by the hydrogenation of arachidonic acid. It is practically insoluble in water, and stable under normal conditions. It is a surfactant.

Reduction of arachidic acid yields arachidyl alcohol.

References

• Merck Index, 11th Edition, 791.
• "Dorland's Medical Dictionary – 'A'". Retrieved on 2007-01-12.

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