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 93700 Herbicide Acid Standard Price on request 674889 N4-Phthalylsulfathiazole, 250mg Price on request 95771 Aliphatic n-Hydrocarbon Standard Price on request