1-(3,4-Dichlorophenyl)urea, 100 µg/ml, Acetonitri

525 Spike Mix

6-Methylbenzo[a]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 2381-39-7

1,1-Dichloro-2,2-bis(4-chlorophenyl)ethane, 1.2mL x 100ug/mL, nonane