Methadone/Methaqualone/Propoxyphene Back Catalog number: 96626 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675335 Dapson, 250mg Price on request 2143.6-1ML Diisopropyl ether, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 108-20-3 Price on request 50296 0.100 N Potassium Thiocyanate Price on request