Tetra-n-butyltin, 1000 µg/ml, Methanol, 5ml

Pyrazophos, 10.0 µg/ml, Acetonitrile, 10ml

alpha alpha alpha (20R,23R,24S)-4 alpha,23,24-Trimethylcholestane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 146276-33-7

Metazachlor-ESA sodium salt, 100µg/ml in AL, 1ml