alpha-Zearalanol, 5mg

Dibenz(a,h)anthracene, 10μg/ml in Cyclohexane, 10ml

2,2',3,4',5,5',6-Heptachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

O,O-Diethylthiophosphate-13C2, sodium salt, 100µg/ml in MeOH, 1ml