Isodrin, 1000µg/ml in MeOH, 1ml

beta-HCH, 100 µg/ml, Methanol, 1ml

n-Perfluoropentanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2706-90-3

2,5-Dimethylpyrazine