CAS 638-08-4 appears in our catalog under these names: Stearic anhydride, 97%, Stearic anhydride, Stearic Anhydride, >97.0%(T), Stearic anhydride, 98%, Stearic anhydride 97%. Offered by: Combi-blocks, GLPBio, TCI, Thermo Scientific (Acros), Ambeed. Available pack sizes: 100g, 1g, 25g, 5g, 500g, 50g, 250g, 5 g.