Octachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

8260 Internal & Surrogate Standard

17a-Estradiol, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 57-91-0

5-Ethyl-7-methylbenzo[b]carbazole, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 4133-22-6