2,3,7-Trichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

p-Terphenyl-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1718-51-0

O-Desmethyl tramadol hydrochloride , 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no.

2-Propanol