2,2',3,5',6-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Ethoxyquin, 100 µg/ml, Ethyl acetate, 5ml

2,3,3',4,4',5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

2-Pyrrolidinone, 1000mg