Arachidic acid

Arachidic acid

Names
IUPAC name icosanoic acid
Other names eicosanoic acid n-eicosanoic acid arachidic acid arachic acid C20:0 (Lipid numbers)
Identifiers
CAS Number	506-30-9
3D model (Jmol)	Interactive image
ChEBI	CHEBI:28822
ChEMBL	ChEMBL1173381
ChemSpider	10035
ECHA InfoCard	100.007.302
KEGG	C06425
PubChem	10467
InChI InChI=1S/C20H40O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(21)22/h2-19H2,1H3,(H,21,22) Key: VKOBVWXKNCXXDE-UHFFFAOYSA-N InChI=1/C20H40O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(21)22/h2-19H2,1H3,(H,21,22) Key: VKOBVWXKNCXXDE-UHFFFAOYAB
SMILES O=C(O)CCCCCCCCCCCCCCCCCCC
Properties[1]
Chemical formula	C20H40O2
Molar mass	312.54 g·mol^−1
Appearance	White crystalline solid
Density	0.8240 g/cm^3
Melting point	75.5 °C (167.9 °F; 348.6 K)
Boiling point	328 °C (622 °F; 601 K)
Solubility in water	Practically insoluble in water
Hazards
Flash point	169.7 °C (337.5 °F; 442.8 K)
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

Arachidic acid, also known as eicosanoic acid, is a saturated fatty acid with a 20-carbon chain. It is as a minor constituent of cupuaçu butter (7%),^[2] peanut oil (1.1%–1.7%),^[3] corn oil (3%),^[4] and cocoa butter (1%).^[5]

Its name derives from the Latin arachis — peanut. It can be formed by the hydrogenation of arachidonic acid.

Reduction of arachidic acid yields arachidyl alcohol.

Arachidic acid is used for the production of detergents, photographic materials and lubricants.

References

1. • Merck Index, 11th Edition, 791
2. Cohen, K. de O. & Jackix, M. de N. H. (2009). "Características químicas e física da gordura de cupuaçu e da manteiga de cacau" (pdf). Document / Embrapa Cerrados (in Portuguese) (269): 1–22.
3. Beare-Rogers, J.; Dieffenbacher, A.; Holm, J.V. (2001). "Lexicon of lipid nutrition (IUPAC Technical Report)". Pure and Applied Chemistry. 73 (4): 685–744. doi:10.1351/pac200173040685.
4. U.S. Department of Agriculture, Agricultural Research Service. 2007. USDA National Nutrient Database for Standard Reference, Release 20. Nutrient Data Laboratory Home Page
5. USDA nutrient database Archived March 3, 2015, at the Wayback Machine.