Multi-Element Internal Std., 10ug/ml, 4x25ml Back Catalog number: 52319 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 8483.19-500MG Metoprolol tartrate, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 56392-17-7 Price on request 58012 Magnesium (Mg) Price on request 677283 Ibuprofen carboxylic acid, 10mg Price on request