Arachidic acid

Arachidic acid, also known as icosanoic acid, is a saturated fatty acid with a 20-carbon chain. It is a minor constituent of cupuaçu butter (7%),^[2] perilla oil (0–1%),^[3] peanut oil (1.1–1.7%),^[4] corn oil (3%),^[5] and cocoa butter (1%).^[6] The salts and esters of arachidic acid are known as arachidates.

Quick Facts Names, Identifiers ...

Arachidic acid

Names
Preferred 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 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:28822 Y
ChEMBL	ChEMBL1173381 Y
ChemSpider	10035 Y
ECHA InfoCard	100.007.302
KEGG	C06425 Y
PubChem CID	10467
UNII	PQB8MJD4RB Y
CompTox Dashboard (EPA)	DTXSID1060134
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) Y Key: VKOBVWXKNCXXDE-UHFFFAOYSA-N Y 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	312.538 g·mol−1
Appearance	White crystalline solid
Density	0.8240 g/cm3
Melting point	75.4 °C (167.7 °F; 348.5 K)
Boiling point	328 °C (622 °F; 601 K)
Solubility in water	Practically insoluble in water
Hazards
Flash point	110 °C (230 °F; 383 K)
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

Close

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.