1,4-Benzoquinone-DNPH (mono) Back Catalog number: 83541 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0035.18-200-T Cyclopenta[cd]pyrene,200 µg/mL,toluene,1mL, Price on request S-4057-K-10T 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. Price on request 678375 Cypermethrin, 100 µg/ml, Acetonitrile, 5ml Price on request