5,6-Dehydroarachidonic acid

≥98%, ethanol solution

cis-8,11,14-Eicosatrien-5-ynoic acid, 5,6-dehydro AA
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level




ethanol solution

shipped in

wet ice

storage temp.


SMILES string




InChI key


General description

An analog of arachidonic acid in which the 5,6 double bond has been replaced with an acetylene group.

Biochem/physiol Actions

Inhibits 5-lipoxygenase of guinea pig leukocytes with an IC50 of 10 μM. In extracts of rat basophilic leukemia cells preincubated with 5,6-dehydro AA, the Ki for the conversion of arachidonic acid to 5-HPETE is 15 μM.


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Hazard Statements

Precautionary Statements


UN1170 - class 3 - PG 2 - Ethanol, solution

WGK Germany


Flash Point(F)

62.6 °F - closed cup

Flash Point(C)

17 °C - closed cup

Certificate of Analysis
Certificate of Origin
G I Miagkova et al.
Bioorganicheskaia khimiia, 13(3), 415-419 (1987-03-01)
8Z,11Z,14Z-Eicosatriene-5-ynoic acid and its tritium-labelled analogue, [5,6-3H]arachidonic acid, have been synthesized on the basis of acetylenic compounds. [5,6-3H]Arachidonic acid has been used as substrate for the enzymatic synthesis of [5,6-3H]PGE2 and [5,6-3H]PGF2 alpha.
Strong suppression by mononuclear leukocytes from human newborns on maternal leukocytes: mediation by prostaglandins.
S A Johnsen et al.
Clinical immunology and immunopathology, 23(3), 606-615 (1982-06-01)
E Razin et al.
Journal of immunology (Baltimore, Md. : 1950), 133(2), 938-945 (1984-08-01)
The quantitative relationships between the secretion of a granule-associated mediator, beta-hexosaminidase, and the oxidative metabolism of arachidonic acid by the 5-lipoxygenase pathway were analyzed for a homogeneous population of T cell-dependent, bone marrow-derived, murine mast cells. The mast cells were...
H H Tai et al.
Biochemistry, 19(9), 1989-1993 (1980-04-29)
[5,6-3H]arachidonic acid has been prepared by catalytic reduction of eicosa-cis-8,11,14-trien-5-ynoic acid (IV) over Lindlar catalyst. When either [5,6-3H]arachidonic acid or [5,6-3H]PGH2 is converted into PGI2 by swine aortic microsomes, the tritium at C-6 is lost to the medium. Thus, the...
DeWayne Townsend et al.
European journal of pharmacology, 519(3), 285-289 (2005-09-02)
Enteric neural activity modulates active transepithelial ion transport in the intestine. We investigated the neural circuits mediating neurogenic secretion in mucosal explants from porcine ileum. Transmural electrical stimulation increased short-circuit current, a measure of active ion transport, by 35+/-2 microA/cm2....

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