CAS 959417-67-5 appears in our catalog under these names: Di-tert-butyl 2-methylpiperazine-1,4-dicarboxylate, 97%, 1，4–Di–tert–butyl 2–methylpiperazine–1，4–dicarboxylate, 1,4-Di-tert-butyl 2-methylpiperazine-1,4-dicarboxylate, 1，4-Di-tert-butyl 2-methylpiperazine-1，4-dicarboxylate, 1,4-Di-tert-butyl 2-methylpiperazine-1,4, -dicarboxylate, 50 mg. Offered by: AmBeed, GLPBio, Biosynth, Chemat, Roth. Available pack sizes: 100mg, 1g, 250mg, 5g, 50mg, 1000mg, 500mg.