1,3,6,8-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

D8-4,4'-DDE, 100 µg/ml, Acetone, 1ml

Sodium 1H,1H,2H,2H-perfluoro(1,2-13C2)dodecanesulfonate (10:2), 50µg/ml in MeOH, 1,2ml

Isocaffeine (1,3,9-Trimethylxanthine),neat,neat,100mg,