Standard #1 Back Catalog number: 59215 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678380 4,4'-DDE, 100 µg/ml, Acetonitrile, 5ml Price on request 2856.16-50-ME 1H,1H-Perfluorohexadecan-1-ol , 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 216144-94-4 Price on request 681698 2,4-Dicofol, 10.0 µg/ml, Isooctane, 1ml Price on request