4-Methoxy-2',3,5,5'-tetrachlorobiphenyl, 100µg/ml in IO, 1ml

3,3'-Dichlorobenzidine, 100 µg/ml, Acetonitrile,

WS PAHs

2-Acetylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.