CAS 42429-20-9 appears in our catalog under these names: (S)–2–Acetamido–2–phenylacetic acid, Ac-Phg-OH 95%, (S)-2-Acetamido-2-phenylacetic acid, 98%, 98%, (S)-2-Acetamido-2-phenylacetic acid, 98%. Offered by: GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 25g, 5g, 250mg, 1g, 10g, 100g.