CAS 5626-52-8 appears in our catalog under these names: 5–Oxopyrrolidine–2–carboxamide, 5-oxoPyrrolidine-2-carboxamide, 5-Oxopyrrolidine-2-carboxamide 97%, 5-Oxopyrrolidine-2-carboxamide, 97%, 97%, 5-OXOPYRROLIDINE-2-CARBOXAMIDE, 97%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 250mg, 2,5g, 100mg, 1g, 5g.