CAS 773873-55-5 appears in our catalog under these names: 5-Fluoro-2-(methylsulfonyl)benzoic acid, 95%, 5-Fluoro-2-(methylsulfonyl)benzoic acid, 98%, 5-Fluoro-2-(methylsulfonyl)benzoic acid, 95.0%. Offered by: Combi-blocks, AmBeed, Chemat, Fluorochem. Available pack sizes: 1g, 10g, 5g, 250mg, 25g, 100mg.