Arachidonic acid, AA or ARA, chemical formula and structure. Polyunsaturated omega-6 fatty acid, present in phospholipids of membranes of body cells.

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Arachidonic acid, AA or ARA, chemical formula and structure. Polyunsaturated omega-6 fatty acid, present in phospholipids of membranes of body cells, and abundant in the brain, muscles, and liver.

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