2,3,3',4'-Tetrabromobiphenyl, 1.2ml x 50ug/ml, nonane

Heptachlor-exo-epoxide (cis-)

Perfluoro-n-[1,2,3,4-13C4]butanoic acid, 50µg/ml in MeOH, 1,2ml

Hexanal-13C4