Geranoic acid

Araki, H., Y. Shidoji, Y. Yamada, H. Moriwaki, and Y. Muto. 1995. Retinoid agonist activities of synthetic geranyl geranoic acid derivatives. Biochem Biophys Res Commun 209(l) 66-72. 

The common trienoic fatty acids are cis,cis,cis-9,12,15-octadecatrienoic acid (a-linolenic acid), cis,-c/s,cis-6,9,12-octadecatrienoic acid (y-linolenic acid), c/s,c/s,c/s-8,ll,14-icosatrienoic acid (dihomo-y-lino-lenic acid), 5,9,13-eicosatrienoic acid, and 5,9,13-docosatrienoic acid. An example of a tetraenoic fatty acid is ds,ds,ds,ds-5,8,ll,14-icosatetraenoic acid (arachidonic acid). The discovery of new polyunsaturated acids is an ongoing process, with the recent discovery of 5,9-heneicosadienoic acid, 5,9-do-cosadienoic acid, 5,9-tricosadienoic acid, trienoic 5,9,13-eicosatrienoic acid, and 5,9,13-docosatrienoic acid from Stoichactis helianthus. Geranoic acid (systematic name is 3,7,1 l,15-tetramethyl-2,6,10,14-hexadecatetraenoic acid) (Figure 9), nerolic and far-nesoic acids are polyunsaturated fatty acids with branches in their structures. 

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