4'-Aminoazobenzene-4-sulphonic acid, 1g

Internal Std., 4000µg/ml Methylene Chloride, 1ml

2-n-Propoxy-3(5)-methylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

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