Docosatetraenoic acid

Adrenic acid

Names
Preferred IUPAC name (7Z,10Z,13Z,16Z)-Docosa-7,10,13,16-tetraenoic acid
Identifiers
CAS Number	28874-58-0 Y
3D model (JSmol)	Interactive image
ChemSpider	4593749 N
PubChem CID	5497181
UNII	64F675W6EN Y
CompTox Dashboard (EPA)	DTXSID80912354
InChI InChI=1S/C22H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h6-7,9-10,12-13,15-16H,2-5,8,11,14,17-21H2,1H3,(H,23,24)/b7-6-,10-9-,13-12-,16-15- N Key: TWSWSIQAPQLDBP-DOFZRALJSA-N N InChI=1/C22H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h6-7,9-10,12-13,15-16H,2-5,8,11,14,17-21H2,1H3,(H,23,24)/b7-6-,10-9-,13-12-,16-15- Key: TWSWSIQAPQLDBP-DOFZRALJBY
SMILES OC(CCCCC/C=C\C/C=C\C/C=C\C/C=C\CCCCC)=O
Properties
Chemical formula	C22H36O2
Molar mass	332.5 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Docosatetraenoic acid designates any straight chain 22:4 fatty acid. (See essential fatty acid for nomenclature.)

One isomer is of particular interest:

• all-cis-7,10,13,16-docosatetraenoic acid is an ω-6 fatty acid with the common name adrenic acid (AdA). This is a naturally occurring polyunsaturated fatty acid formed through a 2-carbon chain elongation of arachidonic acid. It is one of the most abundant fatty acids in the early human brain. This unsaturated fatty acid is also metabolized by cells to biologically active products viz., dihomoprostaglandins, and epoxydocosatrienoic acids (EDTs, also known as dihomo-EETs). In addition to being endothelium-derived hyperpolarizing factors, EDTs have demonstrated anti-endoplasmic reticulum stress and anti-nociceptive activities. They are hydrolyzed by the soluble epoxide hydrolase (sEH) to dihydroxydocosatrienoic acids (DHDTs) and hence might play a role in the efficacy of sEH inhibitors.

See also

• Polyunsaturated fatty acids
• Docosanoid#DTA-derived docosanoids

Further reading

• Ferretti, A., Flanagan, V.P. Mass spectrometric evidence for the conversion of exogenous adrenate to dihomo-prostaglandins by seminal vesicle cyclo-oxygenase. A comparative study of two animal species. J Chromatogr 383 241-250 (1986).
• Sprecher, H., VanRollins, M., Sun, F., et al. Dihomo-prostaglandins and -thromboxane. A prostaglandin family from adrenic acid that may be preferentially synthesized in the kidney. J Biol Chem 257 3912-3918 (1982).