Atrazine-d5 (ethyl-d5),100 µg/mL,acetonitrile,1mL,

2,3,3',4,5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

5ß(H),17 alpha(H),21ß(H)-Hopane (mix. with 0132.30), neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no.

(±)-Venlafaxine-d6 HCl (N,N-dimethyl-d6), 1mg