Ethosuximide-d3, 1mg

EPA Method 502/524 Surrogate Standard #3, 2000µg/ml in MeOH, 1ml

Mefentrifluconazole, 100 µg/ml, Acetonitrile, 1m

3,5-Dibromo[13C6]phenol, 1.2ml x 100ug/ml, toluene