Gb3(d18:1/16:0)-d9 is deuterium labeled Gb3(d18:1/16:0) (HY-156209). Gb3 (d18:1/16:0) (Compound 1) is the Pk antigen of the P blood group system. Gb3 (d18:1/16:0) acts as a cell surface receptor. Gb3 (d18:1/16:0) is used for research on Burkitts lymphoma, teratocarcinoma, embryonal carcinoma, and Fabrys disease[1].