arachidonic acid molecule. polyunsaturated omega-6 fatty acid that is a precursor of prostaglandins, prostacyclin, thromboxanes,

arachidonic acid arachidonate aa ara polyunsaturated omega6 fatty oil eicosatetraenoic cis essential phospholipid phospholipase pla2 dag diacylglycerol lipase eicosanoid precursor prostaglandin prostacyclin thromboxane leukotriene anandamide bodybuilding food nutritional supplement diet carbon hydrogen oxygen molecule atoms atomic model molecular compound composition chemical chemistry bond structure formula circle ring line drawing skeletal