d,l-Methadone Back Catalog number: 96545 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11145.24-K-IO Tris(2,5-dimethylphenyl) phosphate,1000 µg/mL,isooctane,1mL, Price on request 58014 Silicon (Si) Price on request 52065A Spiking Standard 2 Price on request