2,7-Dichloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Di-iso-butyl phthalate (Di-2-methylpropyl phthalate), 100mg/mL, Solvent-nonane, Unit 1mL, # of units-1, Cas.no. 84-69-5

Naproxen, 250mg

2,3',4,5,5'-Pentachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene