Vaccenic Acid Methyl-d3 Ester is labelled Vaccenic Acid methyl Ester (V070010), the methyl ester of Vaccenic Acid (V070000) which is a fatty acid found in Artemia salina that shows antimicrobial activity against a variety of microorganisms except Escherichia coli, Micrococcus luteus and Salmonella enteritidis.