Methadone/Methaqualone/Propoxyphene Back Catalog number: 96626 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1856.21-K-IO n-Pentadecylbenzene-d36, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 352431-31-3 Price on request 0918.14-500-IO 2,4-Dimethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 31317-18-7 Price on request 2436.18-K-IO 2-n-Dodecylphenol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5284-29-7 Price on request