CAS 2071192-55-5 appears in our catalog under these names: N-Boc H-Boroproline Pinacol, tert-Butyl 2-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyrrolidine-1-carboxylate 98%, tert-butyl 2-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyrrolidine-1-carboxylate, 97%, 97%, tert-Butyl 2-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyrrolidine-1-carboxylate, 97%. Offered by: Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 0,5g, 5g, 100mg, 250mg, 1g, 25g, 500mg.