4-Chloro-2-nitrotoluene

Mass-Labelled PCDD & PCB Internal Standard Solution, 1.2ml, nonane

Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K

2,4'-Dichlorobenzophenone, 100 µg/ml, Ethyl aceta