n-Perfluorooctanoic acid

N-Nitrosodi-n-butylamine-d18, 1000µg/ml in MeOH, 1ml

Chrysene-trans-1,2-dihydrodiol, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 64920-31-6

all-trans 4-Keto Retinoic Acid-(9-methyl)-d3, 1mg