Acethion, 100 µg/ml, Cyclohexane, 1ml

N-ethyl-d5-perfluoro-1-octanesulfonamidoacetic acid, 50µg/ml in MeOH, 1,2ml

Acenaphthylene, certified, 0.1g

2,4-D 13C6, 100µg/ml in Acetone, 1ml