CB30865(ZM 242421) is a potent inhibitor of Nampt , an enzyme present in the NAD biosynthetic pathway. IC50 value: Target: Nampt Cancer cells develop dependence on Nampt due to increased energy requirements and the elevated activity of NAD consuming enzymes such as sirtuins and mono and poly(ADP-ribose) polymerases (PARPs). These findings suggest new chemical starting points for Nampt inhibitors and further implicate this enzyme as a target in cancer.