1-Chloro-2,4-dinitrobenzene, 100 µg/ml, Methanol,

Dibenzo[a,l]pentacene ('1,2:8,9-Dibenzopentacene), 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 227-09-8

4-Chlorodibenzofuran, 1.2ml x 50ug/ml, nonane

EPA Method 8070 - Nitrosamines