D4-Acetylsalicylic acid, 50mg

1,1,1,3,11,13,13,13-Octachlorotridecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 865306-24-7

Metoprolol-d7 hydrochloride (isopropyl-d7), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1219798-61-4

Dicofol, 100 µg/ml, Acetonitrile, 5ml