CAS 195730-31-5 appears in our catalog under these names: Bicyclo(4·2·0)octa–1,3,5–trien–3–ylboronic acid, Bicyclo[4.2.0]octa-1,3,5-trien-3-ylboronic acid, 98%, 98%, Bicyclo[4.2.0]octa-1,3,5-trien-3-ylboronic acid, 98%. Offered by: GLPBio, Chemat, Fluorochem, Ambeed. Available pack sizes: 100mg, 1g, 250mg, 5g, 10g, 25g.