4,4'-(1-Methylethylene)bis(2,6-piperazinedione), 4,4'-Propane-1,2-diyldipiperazine-2,6-dione, 1,2-bis(3,5-dioxopiperazin-1-yl)-propane, Razoxane, Propyliminum, RAZOXANUM, dl-1,2-bis(3,5-dioxopiperazin-1-yl)-propane, (+)-1,2-bis(3,5-dioxopiperazinyl)propane, (+)-1,2-bis(3,5-dioxopiperazinyl-1-yl)propane, 4,4'-propylenebis(piperazine-2,6-dione)