beta-Lactam Antibiotics Back Catalog number: 67017 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675549 Chloropropylate, 10.0 µg/ml, Acetonitrile, 10ml Price on request 70308 p-Xylene, 1000µg/ml in MeOH, 1ml Price on request 54136 Total Phenolics Price on request