Atrazine-2-hydroxy, 100µg/mL in MeOH, 1ml

4-Phenyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 104601-39-0

PCB Congeners & Hexachlorobenzene Mix #1

N,N'-Diphenylurea, 250mg