2,4,6-Tribromophenol, 100 µg/ml, Methanol, 1ml

d2 C29 alpha alpha alpha (20R)-Ethylcholestane, 10µg/mL in Osooctane, 1ml

Diethylphosphate, 10mg

Parathion-ethyl, 100 µg/ml, Toluene, 1ml