Vamidothion, 100 µg/ml, Toluene, 1ml

Caffeine, 1000µg/ml in MeOH, 1ml

2,4-Dimethylquinoline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1198-37-4

N-Nitroso-diethylamine, certified, 0.1g