CAS 773873-55-5 appears in our catalog under these names: 5-Fluoro-2-(methylsulfonyl)benzoic acid, 5-Fluoro-2-(methylsulfonyl)benzoic acid, 95%, 5-Fluoro-2-(methylsulfonyl)benzoic acid, 98%, 5-Fluoro-2-(methylsulfonyl)benzoic acid, 98%, 98%. Offered by: Fluorochem, Combi-blocks, AmBeed, Chemat. Available pack sizes: 250mg, 1g, 5g, 10g, 25g, 100mg.