CAS 74228-83-4 appears in our catalog under these names: DL-Phenyl-d5-alanine-3,3-d2, 98 atom % D, min 98% Chemical Purity, DL–PHENYL–D5–ALANINE–3，3–D2, DL-3-Phenylalanine-d7. Offered by: CDN, GLPBio, MedChemExpress. Available pack sizes: 0,25g, 0,1g, 10mg, 1mg, 5mg.