CAS 1254765-89-3 appears in our catalog under these names: TetraMe-Dioxoborolane-OpNC, 4-Nitrophenyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl carbonate 98%, 4-Nitrophenyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl carbonate, 98%, 98%, 4-Nitrophenyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl carbonate, 97%. Offered by: Iris Biotech, Ambeed, Chemat, Fluorochem. Available pack sizes: 250mg, 1g, 100mg, 5g.