Lepimectin, 100 µg/ml, Acetonitrile, 1ml

2,4-Dihydroxybenzophenone-13C6, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 131-56-6 (unlabelled)

EPA Method 625 Base/Neutrals Mix #4

alpha-Hydroxyalprazolam , , Solvent-, Unit , # of units-, Cas.no. 37115-43-8