Theophylline, 100µg/ml in MeOH, 5ml

1,2,4,7,8-Pentabromodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Benzo[c]phenanthrene[1,4]quinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 109699-80-1

Pesticide/PCB Surrogate, Mix, 200µg/ml in Acetone, 10 x 1ml