4,4'-DDE, 100 µg/ml, Ethyl acetate, 5ml Back Catalog number: 673534 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 674233 Fenthion-oxon-sulfone, 10.0 µg/ml, Acetonitrile, Price on request 9179.12-K-ME (±)-Norketamine hydrochloride,1000 µg base/mL,MeOH,1mL Price on request 0299.19-50-T 7-Methylbenz[a]anthracene, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 2541-69-7 Price on request