1,8-Dinitropyrene, 100μg/ml in Toluene, 1ml

beta-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL,

Method 429 Recovery Standard Solution, 100µg/ml in Isooctane/10% toluene, 1,2ml

8-Quinolinol, 250mg