PCB No. 154, 100µg/ml in Isooctane, 1ml

Naproxen, 100 µg/ml, Methanol, 1ml

2,3,4,5,6-Pentachlorotoluene, 1000µg/ml in Acetone, 1ml

2-Acetamido-5-nitropyridine, >98%, 5g