CAS 89938-62-5 appears in our catalog under these names: 2-Chloro-5-(methylsulfonyl)benzoic acid, 2-Chloro-5-(methylsulfonyl)benzoic acid, 98%, 2-Chloro-5-(methylsulfonyl)benzoic acid, 95%. Offered by: Chemat, Combi-blocks, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 5g, 10g, 25g.