CAS 637-03-6 appears in our catalog under these names: Phenylarsine Oxide, Phenylarsine oxide, 97% , Phenylarsine Oxide, >97.0%(T), Phenylarsine oxide, 97%, PHENYLARSINE OXIDE. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), TCI, Thermo Scientific (Acros), Sigma-Aldrich. Available pack sizes: 1g, 5g, 25g, 1 g, 500 mg, 100 mg.