Toxaphene Parlar-No. 50, 1µg/mL in Cyclohexane, 1ml

Monobenzyl phthalate-3,4,5,6-d4, 100µg/ml in MeOH, 1ml

EPA Method 531.1 Individual Analytes

4-tert-Octylphenol-di-ethoxylate, 100 µg/ml, Acet