Etofenprox, 100 µg/ml, Acetonitrile, 5ml

Pentabromo[13C6]benzene, 1.2ml x 50ug/ml , toluene

Metazachlor ESA sodium salt, 10.0 µg/ml, Acetonit

(24R)-24-Methyl-3,5-cyclocholestane and (24R)-24-Ethyl-3,5-cyclocholestane, 200µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 36545-67-2 / '38776-72-6