3,3'-Dimethylbenzidine, 100 µg/ml, Acetonitrile,

4-Methylethcathinone hydrochloride, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 1225617-18-4 (free base)

Method 8081LCS/MS/MSD Spike Solution Conc

3-Chloro-1,2-propanediol, 100 µg/ml, Methanol, 1