4,4'-DDD, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678378 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 10074.5-100MG 4,4-Dimethyloxazolidinone, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 26654-39-7 Price on request 95453 PCB Congeners & Hexachlorobenzene Mix #4 Price on request 2990.9-K-CY 2,2-Dimethylheptane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 1071-26-7 Price on request