2,3-Dichloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

1,4-Dinitrosopiperazine, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 140-79-4

n-Pentacontane

3,4,5-Trichloroveratrole , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 16766-29-3