beta-Endosulfan, 100mg

4-Methylphthalic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 4316-23-8

Chlorthal-dimethyl, 100 µg/ml, Cyclohexane, 5ml

Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml, nonane