CAS 58001-44-8 appears in our catalog under these names: Clavulanic Acid/ 98%, Clavulanic acid, Clavulanic acid, Clavulanic acid 98%, (2R,5R,Z)-3-(2-Hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 98%, 98%. Offered by: TargetMol, GLPBio, Biosynth, Ambeed, Chemat. Available pack sizes: 10mg, 25mg, 100mg, 50mg, 5mg, 1mg, 250mg, 1g.