Multi-Element Calibration Standard-4 Back Catalog number: 50013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 14297.15-K-ME N-Desmethyl-cis-tramadol HCl, 1000μg/ml in MeOH, 1ml Price on request 73146 Ethyl-ß-D-glucuronide Price on request PN-42S 1,3,5,7-Tetrachloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request