2,3,5,6-Tetrachloroterephthalic acid

d4 C27 alpha alpha alpha (20R)-Cholestane, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 205529-74-4

ICP-MS Internal Calibration Mix

Ioxynil-octanoate, 100 µg/ml, Ethyl acetate, 1ml