O,O-Diethylthiophosphate-13C2, sodium salt

N-Nitroso-N-methylethylamine

Normorphine, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 466-97-7

1,2,3,4,6,7,8-Heptachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene