CAS 623-58-5 appears in our catalog under these names: Acetylacetic acid sodium, min. 95 %, 5 g, Acetoacetic Acid Sodium Salt, Acetoacetic acid sodium salt/ min. 98%, Acetylacetic acid sodium, Acetoacetic acid sodium 97%. Offered by: Roth, Chemat Brand, TargetMol, Biosynth, Ambeed. Available pack sizes: 5g, on request, 1mg, 2mg, 5mg, 10mg, 25mg, 50mg.