1,1'-(Azodicarbonyl)dipiperidine (ADDP) is a versatile azo compound primarily used as a reagent in the Mitsunobu reaction for the synthesis of esters, ethers, and amines through the formation of C-O and C-N bonds, often involving stereochemical inversion. It serves as an effective alternative to diethyl azodicarboxylate (DEAD) due to its solid form and ease of handling. Additionally, ADDP functions as a radical initiator in polymerization processes, facilitating the production of polymers and plastics by generating free radicals at relatively low temperatures. It is also employed in organic synthesis for other radical-mediated reactions and in polymer modification to enhance material properties.