Product Name: Arachidonic acid Molecular Formula: C20H32O2 Molecular Weight: 304.47 Appearance: colorless to light yellow powder or oil Purity: 10%; 20%; 40% CAS Number: 506-32-1 EINECS number: 208-033-4 Supplier: ZhenYiBio Arachidonic acid oil (AA, sometimes ARA) is a type of omega-6 fatty acid that is involved in inflammation. Like other omega-6 fatty acids,Arachidonic acid Powder is essential to your health. Omega-6 fatty acids help maintain your brain function and regulate growth.Eating a diet that has a combination of omega-6 and omega-3 fatty acids will lower your risk of developing heart disease.Arachidonic acid Powder in particular helps regulate neuronal activity.