Tri-n-butyl phosphate-d27, 1.2ml x 50ug/ml, toluene

Internal Standard

Cefalexin monohydrate, 250mg

1,2,4-Trichlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 39227-58-2