Serinolamide A is a naturally occurring eicosanoid derivative related to anandamide, which has been isolated from the marine cyanobacteria Lyngbya majuscula and related species in the Oscillatoria family.
Testing established that serinolamide A is an active cannabinoid agonist with moderate potency, having a K<sub>i</sub> of 1300 nM at CB<sub>1</sub> and fivefold selectivity over the related CB<sub>2</sub> receptor.