Levetiracetam, 100µg/ml in Acetonitrile, 5ml

Profluralin, 10.0 µg/ml, Ethyl acetate, 10ml

Sulfur in Heavy Weight Mineral Oil - 0.010 Wt%

Dibenz[a,h]anthracene-d14, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 13250-98-1