15N3-Atrazine-desethyl, 100 µg/ml, Acetonitrile,

2,2',4,4',5,5'-Hexabromobiphenyl (PBB-153), 100µg/mL in IO, 1,2ml

4-tert-Ocylphenol-13C6, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no.

Melamine (13C3,99%; Amino-15N3,98%) 100 µg/mL in Water, 1,2ml