2,3-Dichloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

Naphthalene, 100 µg/ml, Cyclohexane, 1ml

6-Nitrobenzo[a]pyrene, 10mg

4,4'-Difluorodiphenylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 457-68-1