Pentachlorobenzene, 1.2mL x 100ug/mL, nonane

Benzo[a]pyrene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 63466-71-7

p-Toluic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 99-94-5

U{13C18}-Sterigmatocystine, 25µg/mL, Solvent-acetonitrile, Unit 1.2mL, # of units-1, Cas.no.