Thiometon, 100 µg/ml, Cyclohexane, 1ml

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

2,3,4-Trichlorophenol, 100 µg/ml, Methanol, 5ml

Xanthene