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 57911 Sodium (Na) Price on request 30197 Method 532 Surrogate Standard Price on request 673611 Fonofos, 10 µg/ml, Ethyl acetate, 10ml Price on request