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

Perfluorooctadecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 16517-11-6

Cd, B, Mn, Fe, Cu Mix

n-Hexacosane, ?13C: - 34.35, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 630-01-3