4,4'-DDT (ring-13C12), 100ug/ml in n-Nonane, 1,2ml

4-Acetamidoantipyrine, 100mg

n-Triatriacontane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 630-05-7

13C3-Nitrofurantoin, 5mg