rac Metoprolol-d7, 1mg

Benzo(e)pyrene,2000µg/ml in methylene chloride,1ml

alpha-HCH-d6, 100µg/ml in Cyclohexane, 1ml

1H,1H-Perfluorotetradecan-1-ol , 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 15622-57-8