CAS 6783-05-7 appears in our catalog under these names: trans–beta–Styrylboronic acid, trans-beta-Styrylboronic acid, 97% , (E)-Styrylboronic Acid (contains varying amounts of Anhydride), >98.0%(HPLC)(T), trans-2-Phenylvinylboronic acid 95%, TRANS-2-PHENYLVINYLBORONIC ACID, 97%. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 5g, 1g , 5g , 1g, 25g, 100g, 10g, 50g.