CAS 1050423-87-4 appears in our catalog under these names: 4-CARBOXY-2-FLUOROPHENYLBORONIC ACID PI&, 4–Carboxy–2–fluorophenylboronic acid pinacol ester, 4-Carboxy-2-fluorophenylboronic Acid Pinacol Ester 98%, 3-Fluoro-4-(4，4，5，5-tetramethyl-1，3，2-dioxaborolan-2-yl)benzoic acid, 98%, 98%, 3-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid, 95%. Offered by: Sigma-Aldrich, GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 1G, 5g, 25g, 100mg, 250mg, 10g.