CAS 884507-21-5 appears in our catalog under these names: 1-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyrrolidine, 97%, 97%, 1-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyrrolidine, 97%. Offered by: Chemat, Fluorochem. Available pack sizes: 100mg, 1g, 250mg.