CAS 21416-67-1 appears in our catalog under these names: Razoxane, 4，4'–(Propane–1，2–diyl)bis(piperazine–2，6–dione), Razoxane/ 99.42% (existing batch purity), Razoxane, 99.16%, 4,4'-(Propane-1,2-diyl)bis(piperazine-2,6-dione), 95%, 95%. Offered by: LoGiCal, GLPBio, TargetMol, MedChemExpress, Chemat. Available pack sizes: 5mg, 100mg, 1g, 250mg, 1mg, 10mg, 25mg, 50mg.