3,3'-Dichlorobenzidine,100 µg/mL,acetonitrile,1mL

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

d2 C27 alpha alpha alpha (20R)-Cholestane, 10µg/mL in Isooctane, 1ml

1,2,7,8-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene