Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane

a,a’-Dibromo-m-xylene

4-Chloro-2-nitrobenzoic Acid, >98%, 25g

2-t-Butylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.