beta-Lactam Antibiotics Back Catalog number: 67017 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10520.10-100-AN (±)-Nicotine-2,4,5,6-d4 (pyridine-d4),100 µg/mL,acetonitrile,1mL, Price on request 66128 2,2’,3,3’,4,4’-Hexachlorobiphenyl (128) Price on request 10276.18-5MG (±)-Betaxolol-d7 hydrochloride (N-iso-propyl-d7) Price on request