2,4'-DDD, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678377 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 50293 KCl, trans-Aconitic acid & Na Phosphate Mix Price on request 676501 Triethanolamine, 1ml Price on request 19394 EPA Method 8021B Internal Standard Price on request