D6-Acetone, 100 µg/ml, Acetonitrile, 1ml

n-Heptadecane-d36, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 39756-35-9

4.4'-DDE (13C12), 100µg/ml in n-Nonane, 1,2ml

L-Ascorbic Acid-13C6, 1mg