4,4'-DDD, 100 µg/ml, Methanol, 1ml Back Catalog number: 679457 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended C16045200 3-Phenoxybenzoic acid, certified, 0.1g Price on request 92991 Chlorinated Organics Standard Price on request 70203 Isophorone Price on request