Clarithromycin, 1000µg/ml in MeOH, 1ml

6-Nitrobenzo[a]pyrene-d11, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 352431-12-0

Mercury, 10µg/mL in 2-5% Nitric acid, 100ml

2,2',4-Trichlorobiphenyl (17)