13C6-Amoxicillin, 100µg/ml in Acetonitrile, 1ml

Fenitrothion, 100 µg/ml, Toluene, 1ml

Phenanthrene-d10, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1517-22-2

2,2,4,5-Tetrachlorobiphenyl (BZ-49)