8-Chloroperfluorooctylphosphonic acid, 50µg/ml in MeOH, 1,2ml

d4 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL in Isooctane, 1ml

17ß(H),21 alpha(H)-28,30-Bisnorhopane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 83377-28-0

Chrysene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1719-03-5