(9E,11E,13E,15E)-9,11,13,15-Octadecatetraenoic Acid Methyl-d3 Ester is labelled (9E,11E,13E,15E)-9,11,13,15-Octadecatetraenoic Acid Methyl Ester (O235455) which is the methyl ester of (9E,11E,13E,15E)-9,11,13,15-Octadecatetraenoic Acid (O235490), a naturally occurring fluorescent probe for membrane properties. It is also allows for stereoselective preparation of conjugated polyenes. This compound can be synthesized by using D425545.