Perfluoro-n-dodecanoic acid, 1.2ml x 50ug/ml, methanol

Sulfamethazine-d4, 1mg

2,2',3,4,4',5,5',6-Octachloro-3'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

4,4-Dichlorobiphenyl (BZ-15)