Cefotaxime Sodium, 1g

Tetrabromophthalic anhydride, 1.2ml x 50ug/ml, toluene

Naphtho[1,2-b]fluoranthene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 111189-32-3

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