DL-Methadone-d9 hydrochloride

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

Benzo(k)fluoranthene, 1000µg/ml in Acetonitrile, 1

Prallethrin, 100 µg/ml, Acetonitrile, 5ml