2,3-Dichloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

Sotalol HCl, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 959-24-0

Tetramethylurea

Pendimethalin, 100 µg/ml, Ethyl acetate, 5ml