2,5-Dimethylpyrazine

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

4-Hydroxyantipyrine, 100mg

1,2,4,5-Tetrachlorobenzene-d2, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 1198-57-8