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

(±)-Cannabichromene, 1.0mg/ml in Methanol, 1ml

beta-HCH, 100 µg/ml, Methanol, 1ml

3, 5-Cyclocholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17132-01-3