beta-HCH, 100 µg/ml, Ethyl acetate, 5ml

3,4,4',5-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Naltrexone (base, anhydrous), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 16590-41-3

Isopropyl benzene, 200µg/ml in MeOH, 1ml