Dichlorvos, 10.0 µg/ml, Ethyl acetate, 10ml

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.

m-Toluidine, 100 µg/ml, Methanol, 5ml

4,4’-DDE