Human Cellexp 4-1Bb Ligand/Tnfsf9 Recombinant 25UG. Human Cellexp 4-1Bb Ligand/Tnfsf9 Recombinant, Host: HEK 293 cells, Purity: greater than or equal to 95% SDS-PAGE, in sterile PBS, pH 7.4 to a concentration of 50 ug/ml, MW: 47.4 kDa, Storage: -20 deg C, Synonyms: TNFSF9, CD137L, Size: 25UG