Artificial foodstuff-Free sugars and glucose, 50g

trans-1,4-Dichloro-2-butene

1,1-Dichloro-2,2-bis(4-chlorophenyl)ethane, 1.2mL x 100ug/mL, nonane

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.