2,4-DB-methyl ester, 250mg

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.

4-Methoxy-4'-chlorobiphenyl, 100µg/ml in IO, 1ml

Benzal chloride