Toremifene-d6 (Z-Toremifene-d6) hydrochloride is deuterium labeled Toremifene. Toremifene is a second-generation selective estrogen-receptor modulator (SERM) in development for the prevention of osteoporosis. Toremifene also potent inhibits infectious EBOV Zaire and Marburg ( MARV ) with IC 50 of 0.07 µM and 2.6 µM, respectively.