(3Z,6Z,9Z,12Z,15Z,18Z)-1-Bromohenicosa-3,6,9,12,15,18-hexaene is an intermediate used in the synthesis of Docosahexaenoic Acid-13C (D494501), the labeled form of Docosahexaenoic Acid (D494500), which is an Omega-3 fatty acid found in marine fish oils and in many phospholipids. Major structural component of excitable membranes of the retina and brain; synthesized in the liver from α-linolenic acid. Nutritional supplement.