Ioxynil-octanoate, 10 µg/ml, Ethyl acetate, 10ml

2,2-Bis(4-hydroxy-13C6-phenyl)propane, 1.2ml x 50ug/ml, methanol

Lisinopril hydrate, 100mg

2,2',5,5'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane