6-[8(Z)-pentadecenyl]salicylic acid (anacardic acid 15:1) is the minor alkene analogue of the non-polar 6-pentadecylsalicyclic acid (anacardic acid) family isolated from the cashew (Anacardium occidentale) shell and nut by Kubo and co-workers at University of California, Berkeley USA in 1986. Anacardic acids inhibit enzymes such as prostaglandin synthase, tyrosinase, and lipoxygenase and are also known to exhibit antitumor, antimicrobial and antiacne properties. More recently, anacardic acids have shown promise in inhibiting methane production in ruminants.