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 71646 Isobutyl propionate Price on request 53118 EPA Method 300.0 Anions Method A Price on request 50405 Custom Mix Price on request