Mass-Labelled PCB Internal/Recovery Standards, 1.2ml, nonane

3,9-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 66291-32-5

Hexachlorobenzene, 1.2mL x 100ug/mL, nonane

n-Butyraldehyde