CAS 3128-06-1 appears in our catalog under these names: 4-Acetylbutyric Acid, 4–AcetylbutyricAcid, 4-Acetylbutyric acid, 97% , 5-Oxohexanoic Acid, >98.0%(GC)(T), Glurate 97%. Offered by: TRC, GLPBio, Thermo Scientific (Alfa Aesar), TCI, Ambeed. Available pack sizes: 10g, 25g, 50g, 5g, 1000g, 100g, 500g, 1g.