QC Soup Mix Back Catalog number: 59481 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2518.7-100-ME Theophylline, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-55-9 Price on request 93459 MA - EPH n-Hydrocarbon Standard Price on request 679522 13C6-Sulfamethazine, 10mg Price on request