Bendamustine-d 8 (hydrochloride) is deuterium labeled Bendamustine (hydrochloride). Bendamustine hydrochloride (SDX-105), a purine analogue, is a DNA cross-linking agent. Bendamustine hydrochloride activats DNA-damage stress response and apoptosis. Bendamustine hydrochloride has potent alkylating, anticancer and antimetabolite properties.