CAS 3142-58-3 appears in our catalog under these names: 3,3-Dimethyl-2,4-pentanedione, 3,3-Dimethylpentane-2,4-dione 97%, 3,3-Dimethylpentane-2,4-dione, 95%, 95%, 4-hydroxy-3,3-dimethylpent-4-en-2-one, 97%. Offered by: TRC, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 250mg, 5g, 25g, 100g, 10g.