4,4'-DDD, 10.0 µg/ml, Ethyl acetate, 10ml Back Catalog number: 673529 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 680678 Biphenyl, 100 µg/ml, Cyclohexane, 1ml Price on request 94090 Oxygenates Price on request 682911 Allethrin, 100 µg/ml, Acetonitrile, 5ml Price on request