Estrone sulfate sodium salt, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 438-67-5

Benzo[b]fluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205-99-2

4,4'-Dibromobiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 92-86-4

Metoprolol-d7 hydrochloride (isopropyl-d7),1000 µg base/mL,MeOH,1mL