Prazepam

Mass-Labelled PCDD/PCDF Solution/Mixture, 200ng/ml in Nonane, 1,2ml

6,7-Diethyl-1,1,4,4-tetramethyltetraline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 55741-10-1

1,2-Butanediol, certified, 0.25g