Notes: 8-piperidino NAD+ is a derivative of the signaling molecule and enzyme cofactor NAD+ (Item No. 16077).{67371} It has been used in the determination of poly(ADP-ribose) polymerase (PARP) target proteins. 8-piperidino NAD+ is also a synthetic intermediate in the synthesis of cyclic ADP-ribose (cADPR) derivatives.{49790}