2,3,6,7-Tetrachloroxanthene , 1.2ml x 50ug/ml, toluene

1,4-Androstadien-4-chloro-17a-methyl-17b-og lignende-3-one, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no.

4.4'-DDE (13C12), 100µg/ml in n-Nonane, 1,2ml

8260 Spike Standard