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 94501 Chlorinated Aromatics Standard Price on request 93613 Methyl Derivatives Standard Price on request 681255 D4-1H-Benzotriazole, 100 µg/ml, Methanol, 1ml Price on request