PAH IS/S Standard, 4000µg/ml in MeChl., 1ml

Sulfur Calibration Stock Solution Thiophene 1000 µg/mL in Toluene; unit: 5x1mL ampoules Please request for diluted samples in the range 1 to 1000 ng/mL.

Direct Blue 6, 1g

1,2-Dinitrobenzene, 1000µg/ml in MeOH, 1ml