Metals Mix #1 (Parent for 59637) Back Catalog number: 59639 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52072 Spiking Standard 3 Price on request 56124 Chromium (Cr) Price on request 2518.7-100-ME Theophylline, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-55-9 Price on request