1-(4-Chlorophenyl)urea, 100 µg/ml, Acetonitrile,

2,2',4,6,6'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

4-(Trifluoromethyl)cyclohexan-1-carboxylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 95233-30-0

2,2',5,5'-Tetrachlorobiphenyl, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 35693-99-3