Cyclohexanone, 1ml

Promethazine-D3 HCl, 0.1mg/ml in Dimethyl Sulfoxide, 1ml

2,3,7,8-Tetrachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

4-Chloro-3,5-dinitrobenzotrifluoride