2,3,4,4',5,6-Hexachlorobiphenyl (166)

n-Tetracontane, ?13C: -27.05, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 4181-95-7

PCB No. 2, 100µg/ml in Isooctane, 1ml

N-Nitroso-D,L-proline-d7