4,4'-DDE, 100 µg/ml, Toluene, 5ml Back Catalog number: 675841 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 10095.6-100-ME N-Nitrosodiisopropylamine,100 µg/mL,MeOH,1mL, Price on request 9773.23 Zolpidem hemitartrate, , Solvent-, Unit , # of units-, Cas.no. 99294-93-6 Price on request 673732 Aminocarb, 10.0 µg/ml, Ethyl acetate, 10ml Price on request