Method 1640Mix A Back Catalog number: 52146 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73481 Bupropion Price on request 0059.19-200-T 6H-Benzo[cd]pyren-6-one, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 3074-00-8 Price on request 10408.4-5MG O,O-Diethyldithiophosphate-13C4, ammonium salt Price on request