trans-9-Octadecenoic acid-1,2,3,7,8-13C5,(E)-octadec-9-enoic acid;Elainic acid-1,2,3,7,8-13C5;cis-9-Octadecenoic acid-1,2,3,7,8-13C5 Elainic acid-1,2,3,7,8-13C5;cis-9-Octadecenoic acid-1,2,3,7,8-13C5;Oleic acid-1,2,3,7,8-13C5;trans-9-Octadecenoic acid-1,2,3,7,8-13C5;trans-Oleic acid-1,2,3,7,8-13C5