4,4'-DDE, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678380 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1534.20-K-TX10 Perylene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1520-96-3 Price on request S-4323-K-TX10 Nitro-PAH Mixture 1 1106,14 9-Nitroanthracene [602-60-8] 1278,16 2-Nitrofluoranthene [13177-29-2] 0025,16 3-Nitrofluoranthene [892-21-7] Concentration: 1000 ppm in Toluene Units: 1mL ampoules Price on request 679819 Sulfapyridine, 100 µg/ml, Methanol, 1ml Price on request